speaker buzzing, is it due to my amp?

[bitlord 10+ year member]

I just hooked up a rockford fosgate power 800.4 amp to some speakers, but they are making a buzzing noise. I tried changing the ground location in the car, switched up rca's yada yada yada. It only happens while the motor is running and increases with rpms, when electrical is only on plays without buzzing. Anyone know wuts wrong here?

Click to read more...

 

[innsanes 10+ year member]

theres a ground loop, make sure the ground is secure and there no paint on it. Did you run the power cable on sperate side of the car and rca on the other?

 

[bitlord 10+ year member]

yes i did //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif well i sanded the the metal till there was barely any paint.....but it still happens //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif should i keep switching around my grounding points till i hit a sweet spot? The thing is though that i have an mb quart sub amp that it does not happen too (using the same ground location....//content.invisioncic.com/y282845/emoticons/wallbash.gif.1310150c49dd52e0fbe1813a0681e5c3.gif