I have it and a scanguage mounted in the ashtray are, works great. I also have a used P3 I bought off a member here if anyone is interested.My Tekonsha P3 and wiring harness finally arrived and I plugged it in--it was neither of the two empty plugs from my previous post. I'm guessing those may be from the disabled AHC system. I'm still trying to figure out how/where I want to put the ground wire and where I will actually mount the Tekonsha P3 unit. I'd like to put it in the ashtray but it seems from some threads that I may need to get a special adapter for that 3D printed. Thoughts on mounting from anyone using the Tekonsha P3?