DSP Wiring

[wpoll]

Wow - OK, a few questions in there...!

Originally Posted by BMWx5e53

Cheers.

I have the headunit working. Steering controls do not work, but that is a minor inconvenience.
I tapped into the Glove Box Torch (Purple wire) for the Switched Live.

Great that it's running. The steering wheel controls connect to the head unit via a data bus, so it's not surprising that they don't work. You'll need the correct data interface unit for your car and the stereo to sort this - more on this below...

Originally Posted by BMWx5e53

For the Illumination, Could I tap into the X18801 (Blue Connector):
Pos 1 - Night light signal Connector?
So when I turn the headlights on, the Headunits buttons should illuminate.
This will connect to the Orange wire going to the H/U.

Yep, it looks like you can connect X18801 pin #1 to the H/U Connector K pin #13 (orange - ILL) for button illumination.

Originally Posted by BMWx5e53

There are many wires which go from the H/U into a small module titled "CAN BUS Decoder". Unsure what to do with most of these.
The wires are:
Red - Switched Live
White
Green
Orange with white stripe (splits off into a wire to H/U and a wire called BACK-CAR)
Yellow - Permanent Live
Orange (loops into 2x iso connectors)
Pink (splits off into a wire to H/U and a wire called BRAKE CTRL)
Orange (splits into a wire to H/U and a wire called ILL)
Black - Ground

We'd need to know a bit more about the aftermarket H/U you are installing to answer this bit - what is the brand, model and version? Hopefully, it supports pre-CANBUS vehicles, as I don't think the E53 is CANBUS, only the earlier I-Bus/K-Bus data systems. I think CANBUS was introduced on the E70 and later X5s (2007?), although it was a little earlier on other BMW models. Basically this decoder picks up data intended for stereo functions and decodes that data into signals for the stereo - stuff like the steering wheel controls, speed-based volume changes etc.

Originally Posted by BMWx5e53

There is also a Yellow RCA type connector called CCD AVIN which cones off the H/U connector. I am assuming this is for a Reversing Camera?
How would the H/U know the Reverse is engaged in order to flip the images being displayed on the screen to that of the Reverse camera?
The Reverse camera I have has the following:
Yellow RCA on the camera module - for Video
Positive power wire - I can tap into the Rear reverse light wiring harness for this
Negative power wire - I can tap into the Rear reverse light wiring harness for this
It then has a long Yellow RCA cable, assuming this is to route to the H/U.
On both sides of this Yellow RCA cable, there is a Red wire. I am assuming this is for a signal to tell the H/U reverse has been engaged? If so, where would the H/U side's Red Wire connect into? Maybe it connects to Pos 6, Blue wire, CAM-LINE in my picture (Blue Box, Section K).

Not sure what "CCD AVIN" means - "CCD" usually refers to a camera sensor type and AVIN might be "AV IN" - Audio/Video Input. So yeah, that might be a camera input... check your manual.

Yes, there will likely be a signal wire from the car to tell the H/U to display the reversing camera input (the "CCD AVIN" signal?). This is often done as part of the data bus I mentioned earlier, although it can also be a discrete signal line. It seems possible that the red wire that runs along-side the video link from the rear camera would be this signal, so you can try connecting it to connector K pin #6 Blue and see if it switches the H/U display to the rear camera input when you put +12v on it. BUT, before you do this, once again, what does the reversing camera manual say about this wire? And what is the brand/model etc. of the reversing camera?

Originally Posted by BMWx5e53

There is a Brown wire called KEY1. I think this is for the steering wheel controls, but cannot be sure. What would I connect this to?
According to the Picture I posted, there are 2 KEYS, K1 (Pos 3, Brown) and K2 (Pos 12, Brown+White). Surely both should be connected?

Not sure what KEY1 is- it may be as you suggest but I'm thinking that the two K pins on connector K are not related to KEY1 but are more likely to be the K-Bus data lines. I wouldn't connect anything to these until you are sure what they are.

Originally Posted by BMWx5e53

Sorry, More Questions:
In the Green Box in my picture (H connector), there are 2 Yellow RCA connectors.
Pos 5, Video IN - Assuming this will play anything so long as source is transmitting via Composite out? (Sound will be via the Aux R and Aux L)

Pos 6, DVR-CVBS - Unsure what this is. I am assuming it is the same as VIDEO IN, however this is purely for video, so no sound via Aux R and Aux L?

Pos 3, TV-IR - This seems to be a standard wire with a clear/blueish plastic cap over it. What would this be for? IR suggests infrared?

Seems a safe bet that "Video In" is just that - a video input.

"DVR-CVBS" is "Digital Video Recorder - Composite Video Broadcast Signal" and usually refers to the output of a DVR. What does your manual say about this? It could be that the R means receiver, in which case the input is intended to be connected to a TV receiver. And then the IR line makes sense too - for an IR remote, as you have suggested.

Boy, you picked a real monster of a first-time project!

[BMWx5e53]

Yeh I know, tell me about it, this was not a good headunit and car to start on..lol

The Manual to the Headunit only talks about the fucntions, not the setup. So Zero help.
As for the reversing camera, there is no manual.

The Headunit is an XTRONS PF7553BA:
XTRONS PF7553BA Quad Core Android 5.1 Car DVD Player Stereo GPS WiFi BMW E53 X5 | eBay

The Camera is a generic camera:
Waterproof Wide Night Vision HD Car Reverse Camera/Rear View Parking LED Sensor | eBay

The Radio Ariel that came with the H/U has a weird connector on it.
Where would this connect to? (See attached image)
Can someone share an image to what I need as I am unsure what the actual connector is called.
It may be easier to just buy a new Ariel and keep it behind the H/.U?
A link to the 2 options above would be ideal.

[wpoll]

Originally Posted by BMWx5e53

Yeh I know, tell me about it, this was not a good headunit and car to start on..lol

The Manual to the Headunit only talks about the fucntions, not the setup. So Zero help.
As for the reversing camera, there is no manual.

The Headunit is an XTRONS PF7553BA:
XTRONS PF7553BA Quad Core Android 5.1 Car DVD Player Stereo GPS WiFi BMW E53 X5 | eBay

The Camera is a generic camera:
Waterproof Wide Night Vision HD Car Reverse Camera/Rear View Parking LED Sensor | eBay

The Radio Ariel that came with the H/U has a weird connector on it.
Where would this connect to? (See attached image)
Can someone share an image to what I need as I am unsure what the actual connector is called.
It may be easier to just buy a new Ariel and keep it behind the H/.U?
A link to the 2 options above would be ideal.

Found the user manual online...

http://xtrons.com/user-guides/Androi...ser-Manual.pdf

Like you said - not much use.

It does however shed some light on a couple of your questions. The DVR-CVBS is an input for a dash camera - the H/U can be set to record the video signal from dash camera (page 17).

The term "Canbus" is used throughout the advertising and in the manual - OK, let's just call the data bus system in the E53 "Canbus" and not split hairs about what sort of bus it is - the crux is, the H/U should connect to your cars data bus and communicate correctly.

Maybe I can shed some light on the Canbus unit wiring: -

Red - Switched Live - self explanatory
White ??
Green ??
Orange with white stripe (splits off into a wire to H/U and a wire called BACK-CAR) ??
Yellow - Permanent Live - self explanatory
Orange (loops into 2x iso connectors) ??
Pink (splits off into a wire to H/U and a wire called BRAKE CTRL) - connects to park brake switch to allow video playback only with park brake applied - a requirement in some markets.
Orange (splits into a wire to H/U and a wire called ILL) - possible to control night lighting dimming?
Black - Ground - self explanatory

The wires marked with ?? are anyone's guess - but there must be a data bus connection somewhere - I'm just not sure where.

Regarding your aerial connection, the end with the long silver pin goes into the back of most aftermarket car stereo H/Us - the other (small black plastic) end connects to the BMW OEM aerial cable.

But here's your major problem - one I guess you have been dealing with all along. This H/U unit isn't designed for you car.

It's designed for an E53 all right but one that has the standard OEM stereo system and not the full DSP system. The standard OEM stereo has the tuner and amplifiers in the dash, so adapting an aftermarket unit is easy - you can even get BMW-OEM to DIN adapters to make this whole installation plug-and-play.



In your case, the radio tuner and amp are in the back of the car. I'm guessing you have gotten around this with a long loom from front to back and you'll need to extend the OEM aerial too, if you wish to connect it. I doubt you get decent radio reception with an aerial down the back of the dash.

[yes_its_neil]

Your unit is very similar to the Eonon Android unit that many people have successfully installed. Look further at the eBay listing and you will see an illustration of the unit with wiring and part details. The unit as wpoll said is for a non-dsp E53, but can be used with an optional wiring loom. The aerial lead adaptor is shown, as is the canbus box. This connects to a provided extra short loom to the head unit. You will most likely find, as I did with my Eonon, that not all steering wheel functions are supported, but you will get volume and the ability to step forwards and backwards through music/video files as well as the scan function of the radio. Good luck!

[BMWx5e53]

All,

Nightmare installation this is.

Part 1
I took all the door cards off, therefore had to disconnect the switches etc, as I was upgrading the speakers and Headunit.

However, I have reconnected the switches, both rears and both fronts.
But now when I press lock or unlock on the remote fob, it simply opens the rear doors. The fronts do not open. I have to Manually open them and lock them with the key.

The electric folding mirrors have also stopped working (when I press the square button). The Window switches work.

Any Ideas?

Part 2
The headunit has 4 RCA outputs.
2 for Front (L + R) and 2 for Rear (L + R)

I have connected all of them successfully and they all work.
However as soon as i switch the ignition on, a massive whine comes out of the speakers.
But one 2 RCAs - so only 2 lots of speakers, either rear or front.

1. The whine was coming from the rear speakers, so i disconnected the rear RCAs (Going to the Amp) from rear RCA inputs (on H/U).
Whine Stopped.

2. I then took the front RCAs (Going to Amp) out the front RCA inputs (on H/U).
No sound at all, which i what I expected.

3. I then connected the front RCAs (Going to Amp) to the rear RCA inputs (on H/U).
No Whine. Which was confusing as I thought I may have made a mistake in the Rear Wiring.

4. I then connected the rear RCAs (Going to the Amp) to the front RCA inputs (on H/U).
Whine started again.

5. I then disconnected the rear RCAs (Going to the Amp) and the Whine Stopped.

So what I have concluded is, for some reason it doesnt like ALL 4 RCAs connected at one time when the ignition is ON.
However it is OK when the ignition is OFF.

I even tried a different RCA, but never made a differences.

For the H/U, the Ground I am using is the one for the Glove Box Torch.
The Positive is taken from the existing SatNav connectors.

I am totally lost on this one.

The only thing I have totally disconnected is the Wide Screen SatNav.
The DSP Amp, CD Changer and the Bluetooth receiver.

[wpoll]

I'll defer to the more experienced crew here on the door thing but my only comment would be - disconnect the battery for 5 minutes (if you didn't have it disconnected when you disconnected the door wiring - and you should have!).

Regarding the whine - sounds like interference from something, probably due to the earth connection you have used. For an installation like this, you want a REALLY good earth on the main amplifier, and preferably the same good earth point as the H/U. Hard to do in your case but if you have the main amp. in the rear, then connect the amps earth to the negative battery terminal. Then connect the H/U earth to the large earth terminal under the bonnet (hood) on the left side. You can make these temporary connections (with BIG wire!), then test your sound system again. If the whine is gone, you know what to do...

[wpoll]

BTW, all this talk of CAN bus etc. got me interested enough to learn more about the buses in the E53 and as usual, Qsilver7 comes to the rescue.

Turns out there IS some CAN bus in the E53 but it's restricted to DME/DDE, AGS, DSC and LEW comms. Here's a diagram Qsilver7 posted on another board (and likely this board at some point!).



Doesn't change your H/U install but it's interesting to see how the various buses connect etc. Most aftermarket systems are going to call any of the buses in a BMW "CAN bus" - it seems to have become a generic term for any bus system in a car these days.

The above diagram also shows why it's possible to work on E53 cas with only a low-end KK-line OBD-II adapter - the CAN bus isn't used for diagnostics (except via the bus gateway in the IKE). KK-line adapters are much cheaper that the DCAN units required for later cars.

I also had a good read of a really great document on diagnosing D, I, K, CAN and P bus faults. Man, I'm glad I've got an oscilloscope!

[BMWx5e53]

Used a Ground Loop Isolator on Amp side - got rid of 95% of whine.
Will install another one on the head unit side, so hopefully it will reduce it further.

Mirrors, locks etc working now. Disconnected battery for 15 mins, reconnected, and now it works.

Cheers for all your help. Much appreciated.

[BMWx5e53]

I have updated my original post to also include the colours of the wires.

[aureliusmax]

Originally Posted by BMWx5e53

Wiring diagram of the DSP amp, showing which wires go where and what each of the 3 connectors do.

Mines a Facelift 2004 model, 4.8, with widescreen satnav and subwoofer.

The pinouts for the 15 pin connector (X18771 - Black Connector) are:
PIN - CONNECTION
1- Sub 1 +
2- Sub 2 +
3- LH Rear loudspeaker - (Touring LH rear speaker ground) YELLOW
4- Radio on/antenna signal
5- RH rear loudspeaker + (Touring RH rear +) BROWN
6- Sub 4 -
7- Sub 3 -
8- Terminal 30 connects to Fuse 56
9- Sub 1 -
10- Sub 2 -
11- Touring LH rear + BROWN
12- Touring RH rear - BLUE
13- Sub 4 +
14- Sub 3 +
15- Terminal 31 connects to Ground Point


The pinouts for the 18 pin connector (X18772 - Black) are:
PIN - CONNECTION
1- Not used
2- Low freq. negative (-) signal - Transceiver/charging electronics
3- Not used
4- Not used
5- I-bus Signal Line - Splice X18344
6- Not used
7- Not used
8- RH front speaker - Connects to Radio
9- LH front speaker - Connects to Radio
10-Not used
11 Low freq. voltage (+) signal - Transceiver/charging electronics
12-Not used
13-Telephone mute signal - Transceiver/charging electronics
14-Not used
15-Telephone ON signal - Transceiver/charging electronics
16-Not used
17-RH front speaker + - Connects to Radio
18-LH front speaker + - Connects to Radio


The pinouts for the 26 pin connector (X18773 - Blue) are:
PIN - CONNECTION
1- LH front woofer + BLUE+WHITE
2- LH front woofer - BLUE+BROWN
3- Not used
4- RH front mid-range - BROWN
5- LH front mid-range + BLACK+GREY
6- Not used
7- Not used
8- Not used
9- RH front mid-range + BLUE+YELLOW
10-LH front mid-range - BROWN+GREY
11-Right rear mid-range speaker/tweeter + BLACK+WHITE
12-RH front tweeter + BLUE
13-RH front woofer + BLUE+RED
14-LH front tweeter + YELLOW+RED
15 LH front tweeter - YELLOW+BROWN
16-Left rear mid-range speaker/tweeter - BROWN+YELLOW
17-Not used
18-Not used
19-Left rear mid-range speaker/tweeter + BLACK+YELLOW
20-Not used
21-Not used
22-Not used
23-Not used
24-Right rear mid-range speaker/tweeter - BROWN+WHITE
25-RH front tweeter - BROWN+BLUE
26 RH front woofer - BLUE+BROWN

The number of speakers are:
2 in the rear door cards = 4
2 in the front door cards = 4 (up higher near the outside mirrors)
2 in the dash up high (base of the windscreen)

Highlighted in Bold are the ones you will need to tap into. I have also included the colours.
Essentially, if looking at the car from the back you will need to tap into the following from the 26 pin connector:

Front Left (Passenger):
Tweeter - 14, 15
Mid (in Dash) - 5, 10
Sub - 1, 2

Front Right (Drivers):
Tweeter - 12, 25
Mid (in Dash) - 4, 9
Sub - 13, 26

Rear Left (Passenger):
Tweeter/Mid - 16, 19
Sub - 3, 11 [15pin Connector]

Rear Right (Drivers):
Tweeter/Mid - 11, 24
Sub - 12, 5 [15pin Connector]

thanks for the post ! for whatever reason, the ISTA database under my VIN didn't have info for the DSP version of the amp.