Ok, it seems there is very little information on this topic, probably because so few 5.5 gen owners even have factory nav. Here's my dilemma: the factory unit is CD based (knew it when I bought), and the problem is the updates have stopped coming from Zenrin. I need to get the greater detail available with DVD applications in my car because I drive to unfamiliar smaller towns quite often in my line of work.

So, does anyone know if I'll be able to fit in a different type of nav unit (OEM from other gens/models, or even aftermarket) and still be able to control the climate?

For a refresher, this is the unit with 6-disc changer in trunk, Bose tape deck/controller and touchscreen nav w/climate control in-dash.

Please share your thoughts....

 

Why am I getting the silent treatment? Does anyone have information? If there's a link I didn't find, please help out. I don't need to be spoon-fed, just looking for a little help.

 

It is possible no one can directly answer you. Like you even stated so few 5th gens had this, so I can see why there is no response.

I wish I could offer more help, but I dont have an answer for you either.

 

I would do what another person on here did and convert your oem nav setup to the conventional automatic climate control setup + aftermarket navigation headunit. It involves some new wiring, new brackets as far as I remember.