How to Install X-Force Oval Varex Hidden Motor Muffler - 2.5 in. (79-04 All, Excluding 99-04 Cobra) on your Ford Mustang

Step 2: Feed the wiring through the boot towards the back seat, then run the wire into the cabin and under the back seat, towards the plastic cover between the carpet and the doors.

Put your fingers under the cover (pic 1) then push the wiring up under the cover (pic 2).

Do this all the way to the front of the cabin and feed the wire behind the kick panel Pic 3 (plastic cover near where your feet would be in the front of the car).

Step 3: Plug the box into the white 4 pin plug (pic 4)  Remove the panel under the dash (pic 5) and place the wiring and box on the panel (pic 6), run the wire (with the power socket fitting) towards the centre console and refit the panel. 

Step 4: Feed the wiring under the plastic between the centre console and the carpet moving it towards the centre of the car (pic 7 towards the seats) as far as is needed to reach the power socket (pic 8).  

Turn the car on and test the system using the remote Button A will close the Varex and button B will open the Varex

Now enjoy the volume controllability of your new Varex System

Note: DO NOT hard wire this system, IT WILL result in the control box failing (due to constant power supply) and could also damage the electronics in you vehicle due to incorrect installation. This will VOIDyour WARRANTY