Someone mentioned Multifunction switch jeepjeepster...i would look into that...the multifunction switch can go on the fritz, heck I've gone through 2 already and i'm just now reaching 11000 miles...using the switch you can turn all the interior lights on so it could be your problem right there...

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Had 2005 KJ Rocky Mnt. Edition (destroyed)
Had 2006 KJ Sport 4x4
Have 2007 JK 4-dr Sahara 4x4 (tow package so stock 4.10s!!)
AEV 3.5" RS Lift; Schrockworks FR bumper and Warn 9.5ti winch; Cobra 75 CB; Rigid 50" LED light bar; Adventure Trailers (AT Overland) JK Kitchen setup in the cargo area.
Southern L.O.S.T. # 236487