I found a wireless keyboard that I'm very happy with at http://www.fentek-ind.com/kbsrftsusb.htm It has a mouse built in that is easy to use, and I just put it under the passenger seat when I'm driving. I've had it over a month now and haven't had to change the batteries. You'll need a USB port for it. I think I had it about week after ordering it. Good luck with the install!