Stereo & Electronics - Electrical question? Need Help.

When I have my two amps playing and receiver I hear a loud pop and they shut off for a second and come back on when I hit the power button on my windows or sometimes have my radar detector on or hit a large bump in the road. I also noticed my alternator drops down to 10 amps when I'm at a red light but goes up to 14 when the gas pedal is applied. I have 200 amp alternator and everything has been working fine for two years but lately I'm getting this trouble. I also did the wire mod last year and wonder if this might be a problem? Anyone know where I can start to look? Wasn't sure why the power windows or cigarette lighter might be causing this? When this happens sometimes my dash lights flash as well so I know they must all be tied together somewhere but not sure where to look for the problem, my battery cables are tight.

Any Ideas? Thanks

sounds like ur gettin a voltage drop somewhere or a bad connection. id start at the remote battery terminal under the hood i see them very rusty and corroded alot

I checked those and they're fine I have about a year old yellow top Optima.

Does this happen when you try to roll down your window?
Your problem might be BCM or RAP related.

Yes when I roll down the window but also when I hit certain bumps etc. What does those stand for? Thanks

almost seems like a short or exposed wire somewhere based on the pop when you hit a bump