VSC override

Has anybody been able to override their VSC on a 05 double cab limited. I can do it by engaging 4WD, or by switching on the auto locking rear diff, but I am looking to be able to install a switch in the dash to be able to overide it any time I please. I talked to my dealership about this and they of course said they could not help me with that. I was hoping someone knew a little about the wiring for the VSC and how it worked. I am building my tundra for overland travel and the VSC is a royal headache already. I could only imagine being out in the sticks and having traction issues.

I have heard there is a way to ground a wire (not sure which one) to the chasis but the source was unsure about the details. Any help is good.