Using an OEM vehicle navigation screen
I have a 2003 Toyota 4Runner with Navigation. I have been thinking of making a CarPC for some time now, and I was quite surprised to even find a website about it!
I've decided to hack the "problem" of getting a PC into my truck one step at a time. The most obvious first step for me was the LCD/Display problem.
My truck already has an LCD touchscreen built in, and I am wondering if anyone knows of a way for me to interface it with a PC. Has anyone ever done this with an OEM screen? I figure that if this is possible, it will save me a ton of money.
Obviously the screen is already connected to an OEM "PC" that is driving its navigation, but I don't want to rip the whole interior apart to figure out how the navigation computer interfaces with the screen, if someone already might know!
I would definitely appreciate any suggestions/advice you guys might have. If I can't go this route, I'm not yet sure how I am going to approach the problem. But, it seems a bit redundant to have 2 touchscreen LCDs in my dash!
Oh, and I do not have a replaceable stereo head unit, if that makes a difference.