Well I've been having a frustrating experience trying to "re-enable" my radio after the battery died. I have the code but it doesn't work so I tried disconnecting the battery (to reset everything) and it still didn't work....only now whenever I try to start the car it just makes a single "click" and ALL POWER shuts off to everything. Then a few minutes later everything turns back on again until I try to start the car again. It is almost as if whenever I try to start it a main fuse blows or something, but it's not a fuse because everything works again a few minutes later. I'm thinking some sort of relay???
P.S. If I disconnect the battery and reconnect it again power is restored immediately.