Welcome to the forum!
I can't answer the questions on the lift or the cab lights, since I have no experience there. As far as a chip, I would probably go with a multi-position chip from "DP Tuner" (a sponsor here) or "Tony Wildman". You get the advantage of multiple program that you can change on the fly (can't do that with a tuner) as well as choices on custom programs (high idle, valet, stock (for wife /ubbthreads/images/graemlins/phoney.gif), tow, economy, extreme, etc). Both these guys know their PSDs! Cheers!
I can't answer the questions on the lift or the cab lights, since I have no experience there. As far as a chip, I would probably go with a multi-position chip from "DP Tuner" (a sponsor here) or "Tony Wildman". You get the advantage of multiple program that you can change on the fly (can't do that with a tuner) as well as choices on custom programs (high idle, valet, stock (for wife /ubbthreads/images/graemlins/phoney.gif), tow, economy, extreme, etc). Both these guys know their PSDs! Cheers!