this sounds sort of like a problem I've been having. I posted about it a few months ago. Mine was only when I would first start out but my amp and stereo would cut out - complete 0 power - idled fine until I would give it gas and suddenly no power, abs light would come on, and the power would surge on and off.. it was a random issue so was hard to trace. I tried wiggling wires to no avail. Sometimes I would turn the headlights on and amp would go off,,, very frustrating.. it would work itself out after a few seconds so it wasn't as serious as what you're describing. It would happen randomly for a several days, then be fine, then bad for a day etc, I never knew when it was going to happen. I had the alternator checked out - was fine. Then one day a few weeks ago I went out to go to work, turned key,, click, dead battery... grrrrr so we hooked it up to the battery charger, went out about half hour later turned key,, NOTHING.. bigger grrrr.. pop the hood and the battery is fried.. leaking all over! The battery was about 3 yrs old with a 75 month warranty. So to end a long story.. I replaced it and have not had the problem since. I'm still baffled as to why but happy that it seems to be fixed. Hope your problem turns out to be as simple..