That’s the thing. I don’t know. When I bought it 5 years ago it needed to be charged. So I never used it, got it charged then was told it needed a compressor, saved money bought a remanufactured compressor, it imploded filled everything with aluminum shavings and then here I am years later and have everything new and BANG. I was wondering the same thing. Because when I put everything back together I couldn’t get the radio to work at all! I’ve followed all the wires under the dash and looked for a short and checked all the harnesses. I mean I’ve spent hours doing all that. I feel like when I removed the dash, I messed up some wires leading to the firewall but I don’t see any issues. Previous owner was old millionaire who bought it brand new. It has 230,000 miles and runs great. He babied it. I can’t afford to take it to a mechanic.