Originally Posted by SSEBONNE4EVA
...You could very well have a battery drain thats killing the battery overnight. ......A common drain problem is a faulting power antenna.
I have just gone through the power-antenna problem....
You can easily check if it is the anntenna.... when you have a good battery.
Park the car in a quiet place, and open the trunk.
Turn on the key and turn on the radio.... get to the trunk before the antenna completes its travel. As the antenna stops, you should hear a distinct click, then silence. If you do not hear the click, you will probably hear a continuing "hum" telling you that power is still being applied, even though the motor is jammed.
Turn off the radio and go back to the trunk. When the antenna retracts completely, you will hear the click again, then silence.
Again, if you do not hear a click, but there is a persistent hum, the limit switch did not activate and power is still being applied. By morning your battery is dead.