Just a feeler. I own a 2000 323ci. I upgraded my HU, door speakers, rear deck speakers, and HK Subs. All are available. As far as the HU - I was having problems w/ original CD player and Front speakers that came w/ car, so warranty gave me a new CD Player and new front speakers @ 7 mos. ago. CD player is in perfect condition as well as all the speakers - all HK setup. Im debating on selling it, but need the money - so if I get some good offers - I'll let it go for the best one.