Anton, check the V8 list archives for this month.. lots of info..Mostly $75 each to repair..or $250 for the whole thing.. do it yourself sites http://www.zr1.net/amp.html http://scotfab.tripod.com/old_proj15/old_proj15.html fix it for you sites www.willmanselectronics.com http://carstereohelp.com/audi.htm