On the back of the compressor is that 2 wire Red Oval plug & I've replaced mine at least once with one from Casper's. If it's getting proper power try to wiggle it a bit back & forth with ac turned on car running & see if it kicks on for a second. I had to apply quite a bit of downward pressure on mine to keep the AC compressor running. I know it's Hot there so wear gloves or use a tool to wiggle it. I read thru your thread pretty quick so I'm just assuming you have power there or can jump it? Good Luck need AC this weekend.