Audio Systems: Is my wiring messed up?, ground loop isolator, rear speakers

Question
I have an '89 ford probe and I'm having some major problems with my wiring and my speakers. I recently decided to disconnect my rear speakers. In doing this, I extended that wire to connect new infinity 6x9s. Also, I made the mistake of messing with the wire harness going to my eclipse head unit and I had to figure out where all thos wires connected to again (I believe I have them correct now though). Anyway, here's my problem: when the car is on along with the radio, I get a lot of whining from the engine noise (I'm used to this, as it has done this since I've owned it). Here's the new problem I'm having though: when my car accelereates, the noise gets more and more high pitched until finally all 4 speakes start making really loud noises (It sounds a lot like someone blowing into a microphone, and it's really loud). The noises are uncontrollable by the volume button and I have to vigourously hit the power button to try to turn the head unit off. I've noticed a few other things that might be triggering it. When I try to play a CD, the loud noise happens sooner, and also if I hold the brake in, the noise stops (until I let the brake out). So basically, I've tried a lot of things to try to locate the problem. I am wondering if you have any other suggestions. Thanks a lot!


Answer
Daniel,

  ok well your in luck it doenst seem to be nothing major but before i give you the quick fix method you need to go back over ALL your wiring make sure everything is spliced tightly and wrapped good with electric tape and not rubbing together .. now go by radio shack and buy a ground loop isolator and a distortion blocker/noise eliminator wire them into your system follow instructions and your good to go if you need anything else let me know

thanks