Genuine BMW part 65 12 0 153 503: Retrofit kit, auxiliary connection. The number stamped on the part is 65120153503; BMW's catalog files it under the short number 0153503. You will find it on our Instruments & Electronics shelf, under Radio, amplifier, CD player.
It fits every E46 body style (320i, 323i, 325i and 328i, 1999–2006), with the M52 or M54 engines — and the European-market versions.
BMW draws it on 2 diagrams, among them Retrofit, auxiliary connection (03_2398) and Retrofit, auxiliary connection (03_2399). It weighs about 53 g (0.1 lb).
We have not had one on the shelf yet. Request it and we will tell you when one comes off a car.
