another engine noise question

[unrated 10+ year member]

hey everyone, heres my prob amd yes i have used search.....

i have a 1998 cavalier z24, hu Pioneer deh7800 to a hifonics bxi-2006D and a hifonics zeus 4 chan , and 2 12" Type Rs, now i just hooked up the 4 chan, and im getting really bad engine noise, but only through the 4 chan, not my sub amp, both amps are grounded to the same spot

so i hit search and got some info

-i made a new ground on the HU

-i re-ran my RCAs down the other side of the car (not top quality)

-and i made new seperate amp grounds

now im still getting engine wine sounds, but half as bad, minimal noise but its still there, my only option left is to change the rcas, but is there anything i have missed that i can try or will expensive shelded rcas fix my prob?!?!?

My amps are mounted on the back of the box side by side, and i only get the noise through the 4 chan amp, not the sub amp

Thanks

Click to read more...

 

[mathxew 10+ year member]

i had the same problem, and i ran a new ground from my battery to the chasis, cause i tried everything else, and it helped get rid of that last bit of noise