Try removing the roof vent trim piece, and look around inside between the inner and outer ceiling/roof structure. You may get lucky, and find wiring.
Nice looking TT!
If you're going to "regret it in the morning", sleep until noon.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley