I am trying to hook up the parking brake wire(HKS harness) and off the tt module there is a purple wire that either needs to be grounded or hooked up to the p. brake. Should I just ground it along with the HKS harness or what wire do I need to hook up to the p brake. The only wire I see is the blue w/red stripe that has that button for the parking brake. Is that the one??????

 

Nevermind I figured it out. Just for future reference if you hook up to any ground please make sure you have the parking brake on and out of gear.

Everything works just fine. Next job exhaust and EBC here I come

 

ground is only a signal so any ground may be used but I'd rather ground it to the parking wire for safer usage.