Ok guys....easy as pie and looks neat! First, peel back the carpet on the passenger side behind the center console. There you will find the ECU! Now, locate the T-VIS wire on the appropriate diagram below and match it up to the wire you need on the connector. www.st162.com/diy/3sge_ecu.jpg www.st162.com/diy/3sgte_ecu.jpg Next, cut the wire about 1-2" from the connector, then twist those wires together , get yourself a butt connector, and attach a single wire to the other end of the butt connector. This will be the ground for the led, you can test it when the car is off because the T-VIS wire is always grounded when the car is off, as soon as you turn the key to "on" then ground is no more! Now, hook up the 12v to your acc wire, either on your radio, or in the fuse block somewhere... I hooked mine up to an existing 12v line that already had a switch on it, you can do the same! I'll get some pictures of the install and a video of it in action in a couple of days.... But give it a shot, it's super easy and it also lets you know your T-VIS is working properly, and if you do auto-x or drag this will come in handy so you always stay in T-VIS range!