hear engine through subs

[jeremy.vaughn 10+ year member]

when i crank my truck and leave it running, the subs make a thumping sound with the engine. (volume has to be at zero) its not really loud though. and they pop when i crank the truck( turn the key to run)

is there any fix to this or is it just one of the normal things associated with car audio???

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[mmouse57 10+ year member]

sounds like a grounded rca or a broken/loose rca at the amp or jsut a ground loop thats internal to the amp 'malfunction' //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif I recently had this with an amp swapping the amp alone fixed the prob

 

[hidetora 10+ year member]

would also check and make sure your grounded properly and suggest running your RCS's on the oposite side of your power wire

 

[jeremy.vaughn 10+ year member]

it was the ground... it was not fully grounded. (half of the wire was sticking out) of the bolt where it was grounded to..