Originally Posted by
ala_xfire
Remove the negative battery cable and connect an amp meter between it and the terminal. ( cheap multimeter in amperage mode )
Note the amperage draw with everything off ( doors shut etc ).
Should be around 20-30 milliamps.
Start plucking fuses one at a time until you see the draw drop, study the service manual schematics for that fuse and isolate the source.
Thanks for the heads up and pointing me in the right direction. I have a Harbor Freight right down the road, so I'll go pick up an amp meter there here in a bit. And we'll go from there. Thanks for pointing me in the right direction! I may have more question as electrics isn't my strong suit.