HOW TO: Build your own AUX in (E53) Pre-facelift, (- NAV + DSP)

[m5james]

Having an early 01, this still sucks for me because it seems I need to change to a newer version of the CD player to make this still work :-/

[bigflip81]

Any way to do this for a usb?

[TerminatorX5]

no, not for USB. USB is using a protocol that is NOT supported by the radio... 2 wires for 5V DC (can be done) and two wires for serial bus (can't be done)

[m5james]

What has this company designed that we can't make ourselves? I don't know what's intergrated into the circuit board, but that cable would be easy enough to make.

Pre-2002 E46, E39, E53, E38 Aux Input BMW | Quidzel

[TerminatorX5]

Originally Posted by m5james

What has this company designed that we can't make ourselves? I don't know what's intergrated into the circuit board, but that cable would be easy enough to make.

Pre-2002 E46, E39, E53, E38 Aux Input BMW | Quidzel

In a true AUX set up, you retain all your original audio inputs, such as radio, CD changer, cassette deck and gain an AUX.

In this setup, you lose your CD changer, and the input that used to be the CDC input is "reprogrammed" to be an AUX - the 3-pin module contains a IC microcontroller that is programmed to tell the iBus that is an AUX (wording is programmed into the IC, and it can say anything that you want, in this case they chose to say "AUX"). When the "CDC" input chosen from the headunit, the microcontroller (that mimics presence of the CDC) is activated, and accordingly, the 6-pin or coax audio cable for the original CDC is activated and "sound" info is piped through the amp into the speakers of the car...

they are not compatible with the nav cars (using BM53/54 radios) nor with the DSP... However, I wonder if the "analog" DSPs can be compatible, as they still use the 6-pin connector for the sound...

However, in their particular application, they use the direct pins on the back of the radio for the audio in, which is a bit confusing - I would need to look up the WDS diagrams to figure the reasoning to use pin directly on the back of the radio, and not the CDC pins in the back of the car - the 6-pin connector...

However, to be honest, for the price of entry, at $40 for this set up, I do not think it is worth reverse engineering the set up, as the system, if works as advertised, is priced fairly for the function it presents...

the drawback is loss of the CDC...

the benefit - you can connect a BT dongle, and pipe your favorite Pandora right to your car...

[m5james]

Honestly, I'm absolutely fine losing my outdated 6 disk CD changer in exchange for Pandora streaming and everything else I can do online. I did email them and they verified that I can't use it because I've got DSP, so I'm back to square one which is just getting off my butt and replacing the entire stereo again.

[TerminatorX5]

What kind DSP do you have? With coax or 6-pin connector?

[m5james]

No clue, I just gave him m VIN and he said that it wouldn't work. WBAFB33521LH13219

[TerminatorX5]

Originally Posted by m5james

No clue, I just gave him m VIN and he said that it wouldn't work. WBAFB33521LH13219

WBA? wow, it is an early production, before the BMW NA got approved/started using the 5UX...

let look into the WDS, see what it says for production cut offs...

[TerminatorX5]

Vehicle information
Type
Value
VIN WBAFB33521LH13219
Type code FB33
Type X5 4.4I (USA)
E series E53 ()
Series X
Type GEFZG
Steering LL
Doors 5
Engine M62/TU
Displacement 4.40
Power 210
Drive ALLR
Transmission AUT
Colour TOPASBLAU METALLIC (364)
Upholstery STANDARDLEDER/HELLBEIGE 2 (ARBEITSN (N6HC)
Prod.date 2000-11-15
Close Options
Code
Description (interface)
Description (EPC)
S205A AUTOMATIC GETRIEBE Automatic transmission
S248A LENKRADHEIZUNG Steering wheel heater
S386A DACHRELING Roof railing
S403A GLASDACH, ELEKTRISCH Glass roof, electrical
S430A INNEN-/AUSSENSPIEGEL AUT.ABBLENDEND Interior/outside mirror with auto dip
S437A EDELHOLZAUSFUEHRUNG Fine wood trim
S441A RAUCHERPAKET Smoker package
S456A KOMFORTSITZE ELEKTRISCH VERSTELLBAR Comfort seat with memory
S464A SKISACK Ski bag
S494A SITZHEIZUNG FUER FAHRER/BEIFAHRER Seat heating driver/passenger
S502A SCHEINWERFER-WASCHANLAGE Headlight cleaning system
S521A REGENSENSOR Rain sensor
S522A XENON-LICHT Xenon Light
S555A BORDCOMPUTER On-board computer V with remote control
S650A CD-LAUFWERK CD player
Code
Description (interface)
Description (EPC)
S677A HIFI SYSTEM PROFESSIONAL HiFi system Professional DSP
S691A CD-HALTERUNG CD holder
S926A ERSATZRAD Spare wheel
Close Standard equipment
Code
Description (interface)
Description (EPC)
S220A NIVEAUREGULIERUNG Self-levelling suspension
S249A MULTIFUNKTION FUER LENKRAD Multifunction f steering wheel
S302A ALARMANLAGE Alarm system
S310A LM RAEDER/STERNSPEICHE 58 BMW light alloy wheel, star spoke 58
S321A EXTERIEURUMFAENGE IN WAGENFARBE Exterior parts in vehicle colour
S354A GRUENKEIL-FRONTSCHEIBE Windscreen, green-tinted upper strip
S459A SITZVERSTELLUNG, ELEKTR.MIT MEMORY Seat adjustment, electric, with memory
S473A ARMAUFLAGE VORN Armrest front
S533A FOND-KLIMATISIERUNG Air conditioning, rear
S534A KLIMAAUTOMATIK Automatic air conditioning
S640A AUTOTELEFONVORBEREITUNG Preparation f tel.installation universal
S645A RADIO-STEUERUNG US BMW US Radio
S661A RADIO BMW BUSINESS Radio BMW Business (C43)
S692A CD WECHSLER I-BUS VORBEREITUNG Preparation, BMW 6-CD changer I-bus
S845A AKUSTISCHE GURTWARNUNG Acoustic fasten seat belt reminder
Code
Description (interface)
Description (EPC)
S853A SPRACHVERSION ENGLISCH Language version, English
S876A FUNKFREQUENZ 315 MHZ Radio frequency 315 MHz
S992A STEUERUNG KENNZEICHENBEFESTIGUNG Control of number-plate attachment