So this may come off as a dumb question but here it goes. I have an 05 PAC without ESP(Traction Control). After some digging I discovered that there is a wire under the ESP switch plate for the button and I am wondering if that means my car is wired for it? Would it involve switching out the ABS pump module with a compatible traction control module and doing a software update to recognize it?

I also found that there is wiring for the sunroof and heated seats which I do not have. It would be nice to find parts from a donor PAC and install the reaming upgrades. Same thing with the auto dim mirror, all the wiring was tucked away in the roof, now that was an easy upgrade.

Any insight would be helpful. Thanks