Hey, I just bought myself a panasonic deck after looking at many dvd systems, etc. I went with a good normal radio and cd player, I went to many shops and they said the easiest way to put it througha bmw amp is to splice the wires in, if somesthing else is tried it may cause a short in the system, i'd check to see if the wires are spliced in correctly, I am installing my new head unit on the weekend, im sick of the old cappy "Anti-Theft" one, which the cd player doesn't work on, lol.