I recently purchased a 2002 M5 and I wanted to install AUX into it. The current BM53 was not aux ready because it was too old and did not support it. I purchased a unit that is aux compatible and plugged everything in and it does not work. I messaged the seller on ebay and asked him about it and...

Hello all -- this is my first question on the forum as I just picked up my '03 in August! With Christmas rolling around, I am looking to treat myself to a complete media overhaul. I am definitely replacing my Nav unit with a Dynavin. I am also looking to change out the speakers, dsp amp, and...