It's possible...
As you probably suspected, anything is possible... It's just a matter of if it's feasible.
When I had a Civic hybrid, I used to visit these forums, and there's a guy that recently did that with his Civic nav system... Maybe you can go jab him for clues, but it doesn't look very tough.
http://www.cleanmpg.com/forums/showthread.php?t=19387
As you probably suspected, anything is possible... It's just a matter of if it's feasible.
When I had a Civic hybrid, I used to visit these forums, and there's a guy that recently did that with his Civic nav system... Maybe you can go jab him for clues, but it doesn't look very tough.
http://www.cleanmpg.com/forums/showthread.php?t=19387