so i have a 2000 base model prelude, i was taking out the back seats to make room for a seat belt harness bar, i had to relocate a sub amplifier under the drivers seat, and when doing so the positive got loose and arced with the ground to the amp, (i know i should have disconnected the anl fuse but i forgot) also i don't know the relevance but the shop that connected the system got power from the fuse box under the hood, it was connected to 100A battery connection, my problem now is that when i turn my car on the gauge cluster runs fine but when i turn the a/c on the cluster quits working, the interior lights dim and the radio cuts on and off

 

Check your grounds, generally when differant circuits effect one and other it is a grounding issue. 94

 

thanks bro it turned out to be the ground to the battery,