ShakenRoush05

Ok Everyone!

This is the second set of HID's with dual filament bulbs I have tried in my 05 Roush without the high beams working. I have check and re-checked the wiring hook ups. You pretty much can't screw up the polarity, since the plugs are keyed and can only go in one way! The dash high beam light goes on indicating high beam circuit is active. Like all the wiring set-ups the connection to the stock harness is on the passenger side, leaving the drivers side connector out of the circuit.

Has anyone had this problem and the fix! Is there a relay or jumper needed for the early production 05's.

Signed - Squinting in Palm Beach

Vaporhorse09

I havent done this to my mustang only because i have the factory HID's but i had a silverado before this and both kits for low beams and fogs only worked when i plugged the factory harness into the ballast the WRONG way (meaning flipped around, even though it is keyed)...so try that and see if it works