6 Way Round Wiring | etrailer Quickly and easily install a 6-way and a 4-way trailer connector on your vehicle with this custom harness. Connector plugs directly into OEM tow package wiring harness - no cutting, splicing Features: Provides both a 6-way round and a 4-pole flat trailer connector at the back of your vehicle to power your trailer's signal lights Designed for use with a factory tow package Compatible 6 way trailer harness | eBay www›Search›6 way trailer harnessFind great deals on eBay for 6 way trailer harness. Shop with confidence. Skip to main content. eBay Logo: 6 Way Trailer Wire Light Cable for Harness LED 6 Rolls 10 Gauge 100 FT Each Roll See more like this. Conntek 10110-072BX 7 Way RV Trailer Harness & Wired Junction Box, 6ft. Brand New.