i have a 98 ls. the nav system is a hard drive. i upgraded (swapped out) the drive for about 250 bucks from the lexus dealership. easy to swap out. my problem is i still can not type in any local cities. i live in augusta ga. the only augustas that pop up are in nj and nh. if i go to points of interest i can type in augusta and can find different places but cant type in specific addresses. if i am out somewhere and hit home it will take me right to my drive way. any suggestions?