Weired interference

[DeLuXe24 10+ year member]

I just finished putting my 12in FI Q in today and I started running it and I get this really weired interference, its this high pitched whine that whenever I rev the engine the whine gets higher pitched. I ran the power and RCA cables for the amp on opposite sides of the car so I dont think thats the problem, any suggestions? I have an alpine 9883 if it matters.

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[outspoken 10+ year member]

try these, i had the same problem and these suggestions work...

http://www.caraudio.com/forum/showthread.php?t=198477

 

[DeLuXe24 10+ year member]

I kno my HU and amp ground are all ok, and I dont have a pioneer HU, so my only option as of now is shielded RCA's.

Any other fixes that dont cost money right now?? haha

 

[dbman150 5,000+ posts]

are you sure your grounds are good

 

[DeLuXe24 10+ year member]

I grounded my amp straight to the chassis and I roughed up the area with some sand paper b4, I had my headunit installed by my local audio shop and it was ok before so can I assume the ground is ok?

 

[DeLuXe24 10+ year member]

well the interference has nothing to do with the sub/amp, so its all the headunit. Someone help me.