I have a 3rd gen, and I used the power feed for the maplights since it is right there at the top of the windshield. Pretty straight forward.
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“Engineers don’t idle well.”
'99 Limited 4WD
Upgrades: BFG AT T/A KO 265/75/16, Husky floor liners,
WeatherTech window deflectors, Silverstar Ultra headlights,
TaskLED Dome lights, Red & White LED maplights,
LED tails & 3rd brake light, 35% tinted front windows,
TrueFlow air fliter, hardwired V1,
Scion T1807 HU w/ Aux input, Masterflow MF1052 in rear side storage
Mods: Deckplate/ISR, independent fog light control, rear diff breather, constant hot 12v outlets, seat-mounted LED Maglite