"I've been considering--my own GPS navigation system for my car which doesn't have one built in. "

Hey I have been thinking about this project for my car for the last year, I bought 5 GPS boards and 6 graphics LCD screens of various types, I just need the time to do it.
I already experimented getting the data of GPS board and displaying it on LCD, it was fun.
May be we could work on this project together if you like and publish it on this forum.
Regards
Mahmood