1999 v6 RWD wont start HELPPP!!!
 

It started this past saturday. I was on the highway headed back home from where I was, and my radio went out twice. Didn't think anything of it, my radio is finicky as it is...well then I lost power. So I pulled over, and it wouldn't crank. We would jump it, and it would die almost as soon as we took the cables off. So we replaced the alternator the next morning, jumped it, and she was golden...for about 30 miles. She died again, I pulled over again, tried cranking it, nothing but clicks...waited a minute, tried again and she cranked. So I kept truckin. I didn't turn my cruise control on until I had driven a little over 100 miles, but once I did, I only made it about 20 miles before I lost power again...pulled over, and she started immediately. Okay...no more cruise control. But now, every time I hit a bump, I lose power just for a split second and get the power back on its own. I don't have to pull over, I don't have to restart it, it just dies and rebirths all within a split second...every single bump. I stopped on my way for lunch, was parked and shut off for about half hour, she started up just fine and I continued with the same issue. Finally I made it home, backed into my spot, and opened my door to get my things out...my indoor light dimmed until it went black...I finished gathering my things, and now my power locks wont work. Okay...so it sounds like the wires in my wire harness need to be replaced. That's fine. She will still work as long as I jump her to start...wrong. Now, when you try to start it, the dash lights come on and it just buzzes. No clicks, just buzz. And if you listen under the hood when you try to start the truck, it almost sounds like a VHS player rewinding right from the actual engine block. So my dash lights and my head lights work, but my radio, power locks and power windows don't, neither does my interior light...and it buzzes when I try to start it. I tried jumping, and nothing. Absolutely nothing. So...could be solenoid, starter...something? HELPPP!!!