The MK3's are really crappy about voltage drops and etc..

I have lost 2 by having a dead battery and a voltage drop.
Sounds like the MK3 is on the way out.

Now that I read your post again, sounds like the MK3 IS dead and your using the TV tuner for the display.

Is the CD spinning, can you hear it by placing your ear on the MK3?

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98 740il 19" MPars wrapped in Conti Sports2,Bilstein HD Struts&Shocks,H&R Stage 1 lowering springs,e38 Sport Seats,Widescreen,MK4 V29O/S,Digital Tv module "with premium video in motion cable",DTV digital TV converter,Phillips Portable DVD/ipod player,OEM BMW MP3 CDC,Newest BM53 radio "275" with AudioText,"Homemade"AUX audio input cable,13th gen Bluetooth,V-1 radar w/ StealthOne,Euro Armrest,Euro fog light switch and DRL Angel eyes

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