Okay, my new to me Tundra didn't have cruise. No problem I thought, I'll install and after market. Bought the 250-1731 and got it in a couple days ago. Here is a link to the install manual that came in the kit. http://www.rostra.com/pdf/250-1731_Form5156.pdf Quite possible the worst manual I've ever attempted to use. Fast forward to now and I am stumped. Considering I'm probably an above average mechanic/technician this really sucks. Truck is sitting with glove box out, drivers kick panel off and steering panel covers off and I don't know how the hell to complete this install. If anybody has successfully installed this thing and can help me out I'd be most appreciative. I have the switch installed under the airbag and think I need to add a couple wires. One going to the ECM and another to a ground and run them to a plug under the steering column.