Help me !!!!

[Ninja_Turtle 10+ year member]

Well I was driving on the freeway yesturday when all of the suden I start hearing a loud high pitch sound coming from my speakers ( Alternator wine maybe ) . So as soon as I get home I try to diagnose the problem. I check both of my amp's ground and my HU ground and I dont see anything wrong there. Anyways what's weird is that My Subwoofer plays even though I have the subwoofer off on my Stereo ( Pioneer premier 780mp ). I cant get rid of my alternator wine , I checked all connections and everything seems to be intact. WHat could be wrong ? Maybe My 4 month old HU crapped out ?????????

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[iceteebone 5,000+ posts]

check the ground on the headunit? do you have an ipod or portable cd player? if so disconnect the rca's to the amps, and get a cable that converts the mini-jack to rca's and play the music through your ipod and listen for noise. if no noise you know it is in the headunit or faulty rca's

 

[Ninja_Turtle 10+ year member]

Well I dont think its my RCA cables that's for sure. But if It's my HU RCA's do I solve the problem by just buying New RCAs , since the 780mp has detachable RCAs .

 

[Ninja_Turtle 10+ year member]

The part that stills makes no sense is how my subwoofers play even though I have subwoofers off thru my HU. They are connected to the subwoofer RCAs of course.