Finally got everything installed ( Tpye R components & type r 5x7 2 wys in the back ) and all i hear is engine whine. Ive moved the ground to different locations , all of them where paint has been cleaned off, the RCA and speaker wires are above the carpet right now, just to get away from the power wire to see if that did anything, but to no avail. Anybody have any ideas? bad RCAs ?

 

I had that going on with my center ch. amp went to radio shack and got a rca ground loop isolator they sell 2 kinds I got the better one for 25.00 it will also up the signal by 1.5 volts problem solved no more whine oh and it helps to use a HQ RCA cable

 

im running Kunkoncpets RCAs and the ground loop isolator only increased the whine.

 

What preamp voltage from your HU?

- NCSU

 

2.5 volts

 

Could be Bad RCA's, but my guess is a bad ground on the deck. Try regrounding the deck elsewhere.

 

I had a problem with that, i have 4 awg running all the way to my amp, and i tried to have a smaller ground, and i ended up with the whine, i ran a 4awg ground which was massive haha, but it got rid of the whine....just an idea