I have various issues with my radio:
1) Its a cassette deck
2) The left and right arrows used for tuning don't work so I have to tune it holding the MFSW buttons
3) The CD changer has packed up.
For these reasons I'm thinking of replacing it with a Business CD unit like this:
BMW Business CD Player 2002 onwards - BMW E46 3 series | eBay
However I've seen on a few ebay listings for Alpine versions as linked that they have an Optical Antenna connector. Is this really right?
Can anyone confirm that this will work with a CD changer, and the retrofit Aux In kit? The BMW Part number is something like 65120153501 (may end in 2 or 3). I saw the BMW instructions for the retrofit kit posted by Ferret, and apparently it doesn't need coding.
I also saw a Minidisc version of the Business stereo
BMW E46 MINIDISC RADIO CD CHANGER HEAD UNIT | eBay