I was going to start multiple different threads, 1 for each upgrade, and hopefully one day we get to a point where there is so much information about each of these mods that it'll require multiple threads, but in the mean time, let's try to condense here.... I didn't get the tech package because I didn't care to have all of those options. I think it's crazy they lump these all together (for almost $4k!) but I'm sure some of us are interested in adding some of these options (either the factory version or a similar aftermarket version). Obviously, with the right know-how, time (and possibly more $$ than it's worth) this is very possible so let's discuss. Has anyone found a way to upgrade [TR="bgcolor: transparent"] GPS navigation system with onboard maps and free map updates for seven years Automatic keyless entry High definition back-up camera Xenon headlights LED cornering lights Ground lighting under door handles Electrochromatic side mirrors Power rear liftgate GPS-enabled Homelink system Memory seats [/TR]While we are at it, has anyone without the air-ride upgraded to a factory or an aftermarket air-suspension?