Just bought myself a Pioneer DEH 4300 UB head unit. I currently have the Bose Audi Concert system installed but the pixels on the display are goosed and the CD changer in the boot keeps playing up and saying "No CD". Now I know I need an adaptor plate to fit the Pioneer into the OEM housing (found that on ebay) but could anyone tell me what extra connectors (and any other stuff) I'd need please? The guy at the shop said there were a few options of leads I'd need depending on whether the system is amped at the front or just the rear. I wasn't sure so I thought I'd try to find out first. Looked in the boot and the rear speakers don't appear to have an amp attached to either of them (my previous B5 A4 Tdi did have this). The guy said one of the connectors was about 16 quid and the other was 30 odd! If anyone could give me any pointers I'd be grateful. Cheers.