Mounting Option for Trailer Wiring on 2021 Lexus GX460
Updated 01/27/2026 | Published 12/30/2025
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Question:
Can you please tell me how this wiring harness you specify for my 2021 Lexus GX460 installs? Where would it mount next to the etrailer hitch
asked by: Lisa W
Expert Reply:
Hey Lisa! The Tekonsha ZCI Circuit Protected Vehicle Wiring Harness # 119250KIT uses zero-contact interface sensors that clamp onto your vehicle’s existing taillight wires. The sensors read the signal through the insulation, so you never have to splice or tap into anything. It’s a clean setup that keeps your factory wiring fully intact. Have you installed any trailer wiring before? We have install videos on the product page to help, but if you haven't done it before it'll save you a headache to take it to a local shop to have it installed.
For mounting, the etrailer hitch I'm assuming you're referencing is the etrailer Trailer Hitch Receiver # e46YR, so I recommend you get the Curt Easy Mount Bracket # C58001. It will install right around the hitch receiver opening for a great access point with no drilling required.
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Josh B.
1/27/2026
Hey Lisa, how did things go with the Tekonsha ZCI wiring harness on your GX460? Did the Curt Easy Mount Bracket give you a clean spot next to the hitch for the connector? Your update could make it easier for others setting up the same wiring.