I drive a Hyundai that has a navigation system. I purchased it in 2010. I have to dish out $250 or something at the dealer to get updated maps. The nav system's

I drive a Hyundai that has a navigation system. I purchased it in 2010. I have to dish out $250 or something at the dealer to get updated maps. The nav system's update process is password-locked so I can't just do it myself.