I am currently trying to install the Greddy electonic gauges. I have followed the instuctions that came with the gauges plus the install write up on evom. But one thing that I haven't seen yet is where to hook up the parking brake light wires, the white ones. Can the gauges run w/o these hooked up or do they need these because when I tried running the car w/o it nothing happened and I thought that the wire from the parking brake was the wire to link them to but it wasn't because when I turned on the car the gauge only lit up when the brake was on and turned off when I released it. I feel like an idiot! Also when it lit up with the brake on the gauge read nothing, is that right. Where does it go? HELP!