I just did this a couple days ago....Thanks to ron@streeteffectz help it was really easy to find the plug....under your dash to the right of the steering column there is a little black flap where the rubber mat is cut out behind there is a plug that is where i ran mine thru the fire wall at.....or you could look under the hood to find this plug....look on the back firewall close to the top and almost in the middle....and you will see a black plug i cut a hole in that and ran my wire thru that.....