if it gets louder as your rev gets higher its from your altenator, theres a filter that you have to buy

 

either im retarded or something doesnt add up.

try a few things for me first re run the ground and see what happens. second unplug all the rcas and only plug in the sub rca to the sub amp with no ground loop isolator and see what happens? does it still have the correct amount of output and is there whine thru the sub?

 

Ok I re-ran the ground to the amp and it reduced the noise. When I disconnect the front and rear RCAs and leave the sw RCA connected, theres no noise but no sound output. I'm happy with the results from running the ground. I hope others can learn from this. I almost think it was easier to just run a sound processor such as cleansweep or 3sixty.

Things may not seem to add up but the gmos-lan 04 is a strange module. I found out it only runs with a external amp. If the amp RCAs are unplugged, it produces no sound ouput, same for when the front and rear are unplugged with the sw RCA left in.

 

huh i guess the gm 04 is a crap module

 

Did you run your ground from the HU harness staright to the ground terminal on the amp? or just to the bolt that you grounded the amp to?

 

I'm going to throw this out there just for ***** and giggles.
A few nights ago I finally got a Sirius vehicle kit for my Starmate I usually use in my truck. I ran the antenna and plugged the cigarette lighter power into the port by the e-brake where I usually keep my cell phone charger plugged in. After getting it all done I noticed that damn super high-pitched engine whine. WTF? There is no way that simple external mod did that. I was thinking maybe a ground was going bad or something. Then process of elimination kicked in and low and behold I moved my cell phone charger to the cigarette lighter under the head unit, when un plugged the whine is completely gone. When plugged back in, whine comes back. Strange.

 

Well I took the car over to a friends house. We have eliminated about 90% whine just by soldering connections and finding a better ground for my amp.

 

my bad should have caught that.... grounding the hu to the amp works well but alot better if the amp ground is good

 

Hmmmm check your gains too...I had the same problem and it was because my gains were set to high...I tried re-grounding and re-wiring and wasted my time with that...Buddy at a stereo shop told me to try lowering the gains and it worked perfectly.

 

I had a really high whining and lowering my gains worked well too...however if you lower them too low then you dont get the same pound from your subs...so i still get left with that whine to a certain extent

If you lower our back right seat, you'll notice there is a bolt there...is that good place to ground your amp to? or what are your better options?

 

Ok, So I ground my amp directly to the Bolt the the battery connects too....Did you try that?

 

Any update on this...?? I want to know if he got it fixed!

 

Well I've gotten rid of 90 percent of the whine with a better ground. The seat brackets is what I used when I experienced the whine. I tried the ground bolt from where the battery is grounded before I had my aftermarket stereo. The problem I had with that is I only bought 3 ft of ground and 5 ft of power cable. If I tried it I would have to run my subs more towards the back of the trunk.