Thanks ToolRod,
You are right, the instructions were a little bit confusing as it one section that talks about being the P3 being horizontal, which I read as level to the ground instead of level side to side and parallel to the direction of the travel, being pointed forward. But it also says it can be turn from 0 to 360 degrees. I called Tekonsha just to make sure and it was as you described. This makes it a lot easier, thanks. I wish I had that clarified earlier as I mounted, assuming it needed to be as I thought, just to the left under fuel door release handle by drilling into the plastic panel below the steering column that you take off to get to the plug. Seems to a good spot, but not sure how stable it is there. I look at your setup as it would be easier to get to and also removable without a lot of work. Where did you connect the ground wire to? I am using the wire kit specifically made for the Toyota/Lexus and the ground wire is not a long wire.