Cadillac Repair: 1993 Sedan Deville, electric antenna, cigarette lighter

Question
My '93 Sedan Deville has developed a slow electrical leak somewhere.  I had the battery and the alternator checked but both are functioning properly.  If the car is driven on a daily basis there are no problems but when it is left to sit for more than a day or two the battery goes almost completely dead.  I put the battery on an automatic trickle charger and it was never able to attain a full charge.  I'm guessing that something is staying on although I have not been able to find the source.  Any ideas on what it may be or hints as to devices that commonly malfunction in the model would be appreciated.  I am willing to expirament with fuses not needed for turn signals, stop lamps etc. if that is a possible way to isolate the problem.

Answer
The most common faults are:


The hood lamp on the undersdie of the hood does not go out when you close the hood.

The trunk light on the undersdie of the trunk lid does not go out when you close the trunk.

The cigarette lighter has a tendency to short out.

Sometimes the interior lights will not go out when you exit the vehicle.


If your electric antenna does NOT go up and down like it is supposed to, if you listen near the antenna you can hear the antenna motor running all the time.


Normal ampergae draw from the battery with EVERYTHING OFF is 1/2 amp.


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