I've been looking at some install videos for Tail Light Wiring Kits on Chevy Sonics.
Everyone that I've seen so far has the wiring being routed outside under the car.
Has anyone run it inside the car? It's a 2015 Hatchback and if it's doable my preference is running the wires inside away from damage and weather rather than outside.
I wired my 2014 Sonic hatchback with the Blue Ox do it yourself kit, $65. Had no trouble running through the interior of the car. Poked it through the firewall, under the carpet along the drivers side into the back to the taillights. You have to drill a hole in each taillight for the new bulbs. It's easy if you take your time and the wiring is completely concealed.
Terry in Kalamazoo
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Terry D.
2016 Winnebago Vista 26he
Retired Plumber/Pipefitter UA Local 357