In Mustangs with TC...the button/switch that turns it on/off... is the switch kind-of a toggle switch that when pressed, it pops back up?? Does that make sense? Like when you push the switch/button does it stay down or does it just click and pop back up? Becuase you may be able to do the old LT1 F-Body trick to make that switch a permenent on-off switch. If anyone knows what I'm talking about here help me out. In the Traction Control switches that GM used you can take the button off of the switch, and inside there is a little 'L' -shaped piece of metal that you flip over and put the button back on the switch. Then when you start the car TCS is always off, until you push the button to turn it on, but when you push the button it stays down, until you toggle it back to turn it off.... Does that make any sense at all?? I did this to two cars but I didn't understand it until I actually took the switch apart and did it. It takes like 15 minutes, but I don't even know if the switches are the same. It might be worth many people's time to find this out....