Start off by removing the Center Console, Center Stack w/ Trim, and Lower Steering Column Cover. Here's a link to a thread w/ PDF's on how to remove the console and stack, the lower steering column cover is held on w/ three screws, you may want to also remove the drivers knee bolster (I didn't).
Pdf link
Next remove the Cigar Lighter. I do not know of an easy way to do this, I literally picked, cut, and carefully pryed it out of there. I'm sure that's not the right way to do it, but it worked for me. If someone knows how to take it out the right way, please add the instructions to this thread.

Before I forget to mention it, do not cut any factory wiring in this install, simply strip away the insulation as shown in the pics, and everything will also work as normal.

More to come, I have to split this up so I can post the pics... Give me a few minutes.

Next it's time to tap into the starter wire, it's located at the rear of the ignition cylinder, under the steering column. The starter is the darker solid green wire as shown in pic, strip this, attach a like gauge wire, and feed through dash to center stack near cigar lighter. Connect to location -3 on the engine start button. Wrap/tape, ok to reattach lower steering column cover. 2 pics, one showing wire, 1 showing location.

Here's a pic showing the starter wire ready to be wrapped/taped.

Next, I picked up a wire to power the light inside the engine start button. I picked a light so the engine start button light will work with the dimmer switch w/ the rest of your dash lights.
Under the center console, there's a wiring harness for lighting up the lights for the auto tranny gear indicator (both auto and man have the wiring). I tapped in to the blue wire w/ red stripe. Strip, attach a wire, wrap/tape and run behind center stack to where cigar lighter was and connect to X1.

Here's the one thing I wasn't 100% sure about doing. I needed a 12v source to power the button, I used the power for the cigar lighter. You might want to use something that normally draws a little more power and would have a lower gauge wire going to it, you could even pull directly from your battery (please make sure to fuse it if you do it that way). I've seen people plug all kinds of crap into the cigar lighter w/out overloading it, so I think it'll be OK, I put an additional fuse on it anyway, just in case. This is the wire that provides power to the unit, to send to the starter.

If you do it my way...
(poster nor site assumes no responsibility if your car burns up, blows up, or gets screwed up)
The wire from the cigar lighter harness is the blue wire w/ stripe. Strip, attach wire and fuse, wrap/tape, and attach to location -4 on button.

All that said, mine works fine, never a sign of the slightest problem, and I'm only using a 3amp fuse, so there's no problems.


Wiring's almost done. Attach your ground wire to the x2 location and attach to a good ground. I chose to ground it to a bolt for the e-brake. The red wire is my ground wire. Easy to do there since everything's already apart, and it's easy to get that one solid. Run wire behind stack and under carpet to e-brake location.

Take some time and put the button assy from behind into the cigar lighter hole, and attach the chrome trim ring from the front. Then reverse the PDF instructions above to reassemble everything. I recommend testing the button before putting everything back together.

Here it is installed, hope these help you guys. It's a cool functioning mod. No one has even thought that it wasn't OEM. Very impressive and fun. Looks and works great. Everything else functions as stock as well (works w/ the key). And yes, you still need the key to start the car, put the key in and push the button instead of turning it all the way forward. I'll answer any questions I can, right now I have to go pick up my wife from work... any excuse to drive the stang!

Page 1 2005 Mustang
Page 2 My Old car
Page 3 My friends rides
Page 4 future plans
Page 5 How to make a GT grill for your V-6
Page 6 How to wire a trunk release button
Page 7 Razzi Louvers installation
Page 8 Push Button Start
Page 9 MUSTANG AFTERMARKET MANUFACTURER'S (Master List)