Go from the light nnder the wiper cowl. Thats how i did my TJ You do have to remove the cowl to do this. You may also have to notch the cowl so you dont crush the wire. The notch is not seen once it's put back together. Under the cowl on the TJ there is a gromet where the wiper motor wires run into the Jeep. Thats where i brought my wires in also. Hope this helps.
the YJs dont have a removable panel like the TJ does. You have to fold the windshield down and run the wires under the cowl seal and you can run them over and through the hole that the whiper motor uses to run its wiring through the dash - no drilling required.
2011 Jeep Wrangler JK - 33" BFG KM2s, 2.5" RC BB, ARB bumper, IPF 900XS, Superwinch EPI 9.0, AEV Snorkel
1995 Jeep Wrangler - 4 cyl, 2.5" lift, BFG AT 30s, Ford 8.8, SYE+CV, AX15 swap, ARB snorkel, Aussie locker + loads more - sold
1978 Jeep CJ-7 - 304 V8, TH400 auto and quadratrac
2007 Jeep Liberty - Mother's Jeep, BFG ATs and....mud?