First post on here after using it for most of my knowledge on the 620, my 620 ran great until a guy I was selling it to wanted to test drive it, he said he knew how to drive a manual but I guess he didn’t because he stalled it immediately and after that none of the electronics would work not the horn or the lights only the radio the dash wouldn’t light up, eventually I could cut the key on and the dash lights would come on but if I tried to start it the dash lights would go off and wouldn’t come back on for a while, so I turned the key to the on position and jumped the battery straight to the starter and it cranked right up and ran great, and continued to do for many days, but I went to start it today and only taped the key so it didn’t start but turned over the motor and now it’s having the same issues, I also tried to Hotwire it to see if the ignition switch was the issue but it still didn’t work, and as far as I know I was doing it right, I have a new battery new alternator and starter please leave any help you can