i installed a hu to my bose system aftermarket soon as i turn on the car and radio i get engine noise i dunno if its is from the radio or the bose system so i added to 12's now come the bs part when ever my system turns on it get boom and when i turn it off it also goes boom.. im thinkin im just betta off changin my hu to other one not some vr2 from walmart :\ can anyone help me out with this one?

 

bad ground somewhere. make sure you sand off all paint to bare metal at your grounding location(s).

 

kk ill try that i didnt sand down da paint on my ground thanks but as far as the motor threw speaker should i find a betta ground?

 

Ya dawg, try dat out. Nah mean?

 

yah dawg.....

tryed that and sandin all grounds ans still same thing could it be my hu?

 

if its a head unit from walmart, then most likely.