I'm still new to this forum.. and new to desiring a 3Gen TL.. So I do a lot of reading and gaining knowledge about what people do to their cars and why and how...

I see that there are several owners who purchased non navi models that wanted a screen later to have navigation... As I know I would also... I've also read that installing a stock navi screen in is quite the task and not cheap also, so I've moved past that thought....

I'm hung up on what exactly is CAR PC.. Secondly, I see a lot of people relocate the HVAC to the bottom of the column, but where/what screen is used, because to me a super noob, it looks exactly like the stock navi screen with the buttons on the sides and everything...

Also, what is the purpose of ISimple? I cant pinpoint a specific year range that people are doing this in, as to see if it helps older models or newer or what...