Connecting the brake light:
Note: Wiring difference for 1999 and up
- Now that the bar is in the car and bolted down, you will need to connect the wires for the brake light. You will find the main wiring harness on the driver-side rear seat area, it is a long rectangular box. After cutting away the black tape, pull out the wires from the box. You will need to find a red wire with a green stripe (Solid Green for 1999 & up) and a solid black wire. Using the two dark blue connectors, tap into each wire. Then using the light blue connectors, crimp those to the wire from the light bar. Plug that into the dark blue connectors. Test the brake light by depressing brake pedal. If the light does not work, reverse your connections.
NOTE: 1999 & UP Mustang Bulletin
Due to the larger size of the seat belt shoulder loop on the 1999 Mustang, modifications to this loop is necessary or the purchase of new loop is recommended Seat Belt retainer bracket
- PART #
- Left - F4ZZ 76610C07 A
- Right - F4ZZ 76610CO6 A
Modifications Instructions
- Lift headrest and headrest support bars trim all the way up.
- Insert wood stick (or slim jim) down the front side of the headrest bar. Push stick down as far as possible . When the stick is beneath the headrest trim piece, and push headrest all of the way down.
- Remove headrest
- Bend seat belt shoulder strap loop down so that the leg that attaches under headrest is flat
- Remove seatbelt loop and torx bit.
- With template shown below, center punch for new holes and mark for cut off.
- Drill 1/8" Pilot holes
- Drill 13/32" hole in plastic only (on topside only)
- Drill 19/64" hole through remaining material
- Cut off end on new cut off line mark
- Clean off any burs and re-install