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help installing new head unit (with video)updated

I would get one ground loop isolator, connect it to one of your channels and disconnect the other channel and see if it goes away. If it does, just get another and be done with it.
 


KeithGTP03 said:
I would get one ground loop isolator, connect it to one of your channels and disconnect the other channel and see if it goes away. If it does, just get another and be done with it.
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wow, ALL I had to do was reground the RCAs and bam the noises are 90% gone, however there is a VERY slight buzzing still present. Any ideas how to get FULL quiet out of the speakers when the head unit is powered? I am happy with how it is now but could always use some advice.

Thanks to everyone who helped me solve this issue!!
 
Here's another idea... I've had a stereo shop to this. They soldered a wire to the outsides of all of the rca's and then grounded them to a screw/bolt on the back of the radio. They said this helps with the alt noise.
 
http://www.amazon.com/Axxess-AIP-AV5V-iPod-Charging-Cable/dp/B003FP5C8C

Use that and plug directly into the amplifier and see if there's any noise.

Success?....no noise? Then move up the cable next to the head unit. Amazon.com: female to female rca coupler: Electronics

Use the RCA coupler to plug your iPod into the RCA cable leading to the amp. Success?....no noise? Then the problem is the Head Unit. DO NOT EVER PLUG/UNPLUG A HOT RCA CABLE!!!!! Pioneers will blow an internal fuse. ONLY PLUG/UNPLUG RCA CABLES WHEN THE UNIT IS OFF!!!!!!
 
THREAD REVIVAL!!

UPDATE:

After 4 months of living with the problem, I decided to see a buddy who also is familiar with car audio as I am,

turns out the gmos-04 adapter has 2 potentiometers inside of it (one for door chime volume one for audio volume)

after fiddling around for hours checking grounds once again checking everything we found that turning down the audio potentiometer in the gmos-04 got rid of the static + alt whine i was getting!!

Bull s**t!

anyways I am pleased with my system now loud as hell and while we were at it disabled the dvd parking break. (no I will not wath when driving just wanted the feature for passengers etc..)

Now I feel I am the master when it comes to the gmos adapters for gm vehicles having spent hours on it!
 
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