Hornet V-120 Motorcycle Wiring Harness Optional motorcycle quick XP3 Hornet V-120 wiring harness. Fast installation of electronic Hornet deer whistle repeller (purchase separately) without drilling holes into your motorcycle.. Harness uses the new weather-tight connector of the V-Series Hornet. Motorcycle wiring harness has a newly reconfigured micro switch with a self adhesive side for easy attachment without any screws. Use only with the V-Series Hornet.