2000 Cadillac DeVille radio
I have a 2000 Cadillac DeVille radio stays time for
3 seconds then shuts off
Check the radio wiring and fuses first, hopefully it's just a crossed circuit with some rubbed trough wires. Note do not disconnect the radio from the vehicle or you will have to go to the dealer to have it re-coded. In my Deville the radio just quit one day but my wife said it would turn on then off then back on a few times before staying on just before it gave up, got one really cheap from a wrecking yard with the VIN from the totaled vehicle so re-coding was simple from the dealer. But if it happens again I'm going aftermarket. That might be best for you if the radio is toast.