Tapped into the dome light power and dome light "switched" ground for all 4 sills. wired them all up near the fuse panel. The hardest part for me was running the rear right door sill wire through the right side floor panels, because it didn't have a panel (below the b pillar) that was on the driver side.
Trunk strips were wired into the T1R dome light that is in the stock trunk light location. The strips are attached to the bottom of my Zeta cargo cover.