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Amp buzzing my front and rear speakers
I ran an 8 gauge power wire to my jbl 4 channel amp. Fused with a 50a fuse. Grounded to a bolt in my trunk that I drilled to the metal. Everything sounded good, had my sub and front speakers hooked up. Decided to buy a mono amp to power my sub. So I hooked up my rear speakers into the mix. Upgraded to 4 gauge power wire running to distribution box, which then has two fused 8 gauge wires running to the amps.
Well, my jbl went bad for some unknown reason, I heard a pop in the speakers, so bought another amp to power my front and rear speakers. Now all I hear is a buzzing sound when I turn accessory on, and when I turn the car on, the buzz goes with the engine rpm. It is so loud almost unbearable! I unhooked my amp and just had my headunit power them and they're good. I also tried my friends 2 channel mtx to run just the fronts and I get the same noise!
It's so weird when acc is on when I turn on my headlights the pitch gets higher. Or when I use anything electric in the car it changes the buzz pitch.
Any help suggestions? Anything!? Thank you
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