I turn the key û nothing û no power û no lights û no clock - completely dead.
The only way to get it started is to jump it.
After it is started it runs fine till I shut it off û then it goes completely dead û flatline
No matter if I shut it off for a long time or a short time - same thing.
No matter if its hot or cold - same thing- dead.

The battery is good
The alternator is good
The starter is good
Terminals are clean
Any ideas?