Van short hell
My '92 Ford E=150 conversion van won't hold a charge overnight. The dealer first blamed a short in the aftermarket rear stereo, which he disconnected for a cost of $170. Then he blamed a short in the Ford factory dashboard stereo, removed at a cost of $230. The battery and alternator check out fine. But something's still drawing power and these dealer neanderthals can't seem to find it. Any suggestions?