When I am traveling, I can't seem to get much on FM Stereo. When I am traveling, it won't pick up hardly any stations. When I am in the city area, it seems to work fine. The dealer checked out the whole system and found everything was hooked up properly and signal was good. Does it matter if the FM stations are preset or not ? When I use the scan mode I can't seem to pick up anything, no matter where I go. Am I doing something wrong with my controls ? What would cause the FM stereo to not be able to pick up FM signals when I am traveling ?