Dear mdawg, having a car computer is a hobby. For me it is a hobby and i love it. For you Kenwood DNX 5140 might be the way to go because you just want to do nothing and get everything which is fine to but it is also that fact that separates "your kind" from "our kind" (no racism of any sort intended, "our kind" is simply kind people that enjoy messing around with technology and troubleshoot problems that might come up because in the end we find pleasure in completing a project on our own). If you are unable to stand up to the pressure then give up and pay someone to accommodate your need.
Apologies for the roughness