1sicLS1

iTrader: (10)

ok here is my problem....When I turn my radio on (aftermarket) my volt meter will bounce up and down from 11volts and up to 14, the lights dim Interior and exterior) , and if the heater is on it will bounce also. Also I have a whining sound coming either from the alternator and/or belt. I will be changing the belt this weekend,hopefully that helps. Is it possible that the belt could be slipping not allowing full power I really need to figure this out, thanks guys.

2001NBMZ28

I'd disconnect the radio (fuse) first and see what happens.

1sicLS1

iTrader: (10)

hmmm..good idea. Ill try that right now and let ya know!!!!

1sicLS1

iTrader: (10)

well with the fuse out, everything works fine. it just seems to do it with the radio on, like its drawing to much power. I should mention that I do have a aftermarket 4 channel amp, and now I have no sound coming out my speakers?? Everything was professionally installed so no hack jobs. Plus it has worked flawlessly for over a year. I dunno Im lost, cuz sometimes sitting at a red light even with the radio off my volts drop down alot, and lights dim.

2001NBMZ28

Since you have an aftermarket system I'd post/ask in the Stereo/Electronics section and link to this thread.

1sicLS1

iTrader: (10)

will do thanks...