First let me say that I am completely new to wiring/electronics in cars. I have an 06 STi and I'm trying to find the proper way to wire up my gauges (pillar gauges). Where is the best place to attach the 12V battery(+) & (-)??? I successfully installed a Blitz TT with an HKS wireharness (a few months ago) and used the red wire from the harness for the ignition 12V that one of the gauges needed but I dont know what to use for the battery + & -. What is the safest place to tap into? is either of the other wires on the HKS TT wire harness 12V + or -. Thanks for any help.