2006 Nissan Xterra install

[Godsmack 361]

I bought a new Pioneer z110bt and have been messin with installing it into my 2006 Nissan Xterra SE. I keep getting this high pitched whine. The factory Rockford Fosgate system is still in, and I have the bypass harness' and everything is hooked up right but it still makes this high pitched whine noise. Keep in mind this is WITH the key off...........I am lost as to why its doing this........The whine is still present with the RCA's unplugged. Any ideas guys?

J

[j-roadtatts 1,129]

Whine is usaully from poor ground wiring or ground loop. So make sure all the audio grounds are hooked to a good spot, and you can even run a small wire from the battery for ground loop. Hook ALL Audio grounds to the SAME spot if possible.

Edited February 18, 2010 by j-roadtatts

[Godsmack 361]

The shitty factory amps have a decent ground. I will try re-stripping and doing the head unit grounds again.

J

[j-roadtatts 1,129]

Ground loop is when voltage changes from different points in the car due to resistance in the paths of current. This can be measured with a DMM, don't waste your time though. Just make sure all the audio grounds are hooked to the same spot. If this doesn't work, run a small wire from the battery ground to the ground point then you know you have no voltage drop. This wire only has to be 14-12ga. and does NOT need a fuse.

Edited February 18, 2010 by j-roadtatts

[Godsmack 361]

Well looks like I got a plan for this weekend.

J