I have a 1994 prelude wit a h22a vtec swap. on top of the vtec problem, i think the ground is bad. My radio somtimes cuts out and my gauge cluster goes screwy when i hit the gas (stoped and moving) It did the same thing on the highway everytime i hit a bump. The car has some crap ass amp that only is letting the back two speakers work, could this be it. possiblly a short. After this happens the door locks and the windows go really slow like the battery is low, but the car still starts with no problem. I figure the problems is a loose ground somewhere or a bad alternator.