engine noise, little help Options

[stephen]

ok i install a kenwood radio w/ ipod connector also i got 2 amps one for my speakers and the other for my box , and install indiglo lights , H.I.D.s well i been getting engine noise every time i turn on all my thing together and it's a really pain listen to that noise every time i shift any ideas what could be the problem please if u guys have any ideas how to resolve this matter please let my know asap thank's fellas

[AudioFreak]

An old trick we used was to use a shorting plug. Get 2 rca plugs from radio shack. Solder a piece of wire connecting the two contacts ( you are connecting the center signal lead to the outer ground lead). Start by connecting the plugs to the amps inputs and turn on car and stereo system. If you have alternator whine the problem is at the amp. Regrounding the amp usually fixes this. If you don't have any noise connect the rca cables to the amp but not the radio. Using rca couplers attach the plugs to the rca cable's at the radio end. Again run the car and stereo. If you have noise try moving the rca's. If you don't have noise than the deck is causing the noise. Again regrounding usually helps.

If you still can't get rid of the noise the filters do work but can sometimes effect sound quality. I try not to use them if possible.