multimedia interface & rear camera help

abutayyeb · #1 08-19-2012, 10:06 AM

Hello my friends,

please I'm was puy this tow items and i don't know how is the wiring in my car e53 2005.

PIE BMW/NAV-EYE1 BMW Navigation Camera/DVD Adapter Kit | eBay

1999-2013 BMW X5 E53/E70 CCD PAL Car Rear View Backup Reverse Waterproof Camera | eBay

I try to connect the multimedia but i don't know where i can take the power in trunk,

and when i connect camera to reverse light wire it shown wrong message on cluster screen

Thanks for help

TerminatorX5 · #2 08-19-2012, 12:01 PM

Please provide a little bit more information about present setup: it is a 2005 E53. Does it have navigation? it seems that yo might have the nav already. i am not familiar with the PIE, but it seems that the blue connectors are simple - they just connect to the blue connector on the Nav module.

I would recommend taking power via a relay directly from the battery, as it is not known what the draw is on the PIE module.

You say, it shows a "wrong message on the cluster screen" when you connect to the reverse light.

What message? What does it say? Cluster screen - is it the main navigation screen or the screen in the instrument cluster?

abutayyeb · #3 08-19-2012, 12:52 PM

Thanks terminator

I'm sorry for my English language.

Yes i have navigation mk4 in my car and i connect blue connector but the multimedia interface need connect positive and ground wires to the car,
and camera positive when i connect it to reverse wire it shown wrong message on instrument cluster (chick reverse light)
You know my friend in my country (Saudi Arabia) I'm looking for anyone do it to me but there's no one know how is the wiring for bmw

abutayyeb · #4 08-19-2012, 01:01 PM

I'm was see your topics about connect camera directly to pin 17 by relay, but I'm not expert so that i buy the PIE.

May be if i don't found solution i well burn it

TerminatorX5 · #5 08-19-2012, 01:35 PM

don't worry about your english, it is fine - if something is not clear, we can ask you again...

it seems that PIE is connected to the system correctly, and you need just the video to be put out to the front monitor. My previous write-ups, that you mention, refer to a factory TV tuner, that supports factory rear view camera.

I am not familiar with PIE, but here is what you probably need - a signal that tells the PIE that the car is in reverse gear (hence the reverse lights), and the power for the camera to actually operate.

I would suggest that you supply your camera with permanent source of ignition hot power by using a relay, in order to avoid overtaxing the circuitry - find a wire in the wire loom that has +12 VDC, and the voltage goes to the +13 or +14 VDC when the engine is running. Be careful, there are many wires that carry a signal, and not power. Ground wires are usually brown in color, and the power ones are yellow or yellow with a stripe... the colors in your country might be different...

Once you find a power wire that is switched with ignition, use a small, tiny relay and tap the coil of the relay into that power. then draw the battery power directly into the camera through that relay - by doing this, you avoid placing too much electrical stress on the power wire that you tapped the relay to.

This should resolve the power issue for the camera - it will be on everytime that the ignition is on.

Now you need a signal that will tell the navigation computer to switch from regular screen to the reverse camera. Naturally, the reverse lights are the simplest point to get that signal but, here lies a problem.

In BMW, the electric power that is supplied to the reverse light is not plain +12 VDC to ignite the light bulb. That power is computer regulated (LCM module), and it is a Pulse Modulated Wave (PMW), meanning, that the power is applied in a very quick succession of high and low voltages - the computer monitors the circuitry of the line and will report any abnormalities. This is exactly what is happening in your case, when you introduce additional load to that circuit, the computer thinks that there is a trouble online. If you wish to use the reverse lights for the signal source for rear camera, use another relay - you will need to find a relay with a slow response time, so the rapid changing of the voltage on the reverse lights would not result in flickering of the image on the screen.

If you car is equipped with a PDC module, there is another option to wire the reverse signal.

do you have PDC in your car?

abutayyeb · #6 08-19-2012, 08:25 PM

Really many thanks terminator for your help

Yes i have PDC, i think you mean i can connect camera to PDC ?

and there's last 7 digits for the car (lt58735)

TerminatorX5 · #7 08-19-2012, 09:05 PM

you are welcome...

you can search the forum for other posts for the rear camera ( you may have already seen those), where I am talking about connecting the trigger wire to the PIN7 of one of the PDC connectors. Make sure that you use a relay, because you do not know the draw of your components, and you do not want to compromise the overall operation of your car. I used relay with regular sensitivity, you might want to use one with very sensitive coil, as it draws less current. I am not making detailed description here, because there are other posts out there with details.

As far as your VIN - here is your info... Interestengly, you have some Individual components in your car, but it does not list what those components are - do you have machine gun mounts???!!! Or laser distance measuring device???!!!

Individual data present!

Vehicle information

Type

Value

VIN WBAFA11046LT58735
Type code FA11
Type X5 3.0I (EUR)
E series E53 ()
Series X
Type GEFZG
Steering LL
Doors 5
Engine M54
Displacement 3.00
Power 170
Drive ALLR
Transmission AUT
Colour KALAHARIBEIGE METALLIC (481)
Upholstery LEDER DAKOTA/HELLBEIGE 2 (LCHC)
Prod.date 2005-05-23

Options

Code