One other problem...I have a Pioneer cd player 200 watt peak in my car now after i fixed the whole pre amp issue...now when its night time i have the lights on and the turn signal and brake lights on...it shuts off...then when i rev it higher with all the lights on..it works...i have a new aternator and new battery i also installed...i have 75 watt kenwood speakers in front and 100 watt kenwood speakers in back...i kno that the radio isnt sucking that much power...it feels like it doesnt even uses the battery at all..just alternator..so why isnt it staying on with the battery?

 

what is the voltage when this happens???

 

Upgrade to an FD alternator, same problems with my 7. Once I changed to a FD 100 amp alternator, all my problems disappeared!