somthingwierd

I already have a completely redone system with 2 amps new speakers and subs.  the works. My boss just said he has a way to get planet audio stuff for cheap and I have never heard of them before. Just wanted some knowledge, and after looking around the internet there are a lot of mixed reviews. Some people swear by them while others like yourself say they aren't worth their weight in shit.

I've followed every noise suppression and whining fix/guide I could find. All RCA's are run straight down the middle of the car. Both fuses are within the 3 foot from the terminal. Both of my amp wiring kits are using 4 gauge wire. I'm using some Rockville RWK41 wiring kits. Both amps are grounded at the same place as the battery with the paint stripped. I did try moving the amp's ground, but it made the problem worse. I tried moving the head unit's ground to a different place, my head unit is a Pioneer FH-X720BT, but I don't think it was a very good place to put a ground, so that is something I could try again, but from my testing a few months ago I found that when the rca's are disconnected from the amp, the whine is still there which means it's a grounding issue, but if both the amps are grounded at the same place as the battery I don't see a better place to put it. I also tried using some ground loop isolators but they didn't help either. I also tried the old wrap some wire around the RCA's at the back of the head unit  to ground them, didn't work either.
The power for the speaker's amp is being pulled from the bolt that goes into my fuse box 1 foot away from the battery, My bass amp is drawing directly from the battery. The reason for this is the terminals on my battery are too small to fit the ring on, I had to Dremel it a bunch to even get 1 to fit.
When I got the car it did have the original sound system, and no, I didn't hear any whine when it was stock.