Lexus GX470 Trailer Wiring Harness | Advance Auto Parts The best part is, our Lexus GX470 Trailer Wiring Harness products start from as little as $28. When it comes to your Lexus GX470, you want parts and products from only trusted brands. Here at Advance Auto Parts, we work with only top reliable Trailer Wiring Harness product and part brands so you can shop with complete confidence. Lexus GX470 Trailer Wire Harness and Connector - Best Order Lexus GX470 Trailer Wire Harness and Connector online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.