I have a question on the radio tuning controls with the Nav system. On
mine, when using the radio, there are numerous controls to change the
station.

There are the (1) programmed buttons on the screen, the (2) "seek" button,
(3) the cd change button on the dash, the (4) steering wheel buttons, and
the (5) tuning **** on the radio itself ( and of course the voice control)

On mine, all of the controls will only switch between the programmed button
stations except for the **** and of course the voice command. So out of 5
controls, only one will change stations 1 at a time. No matter if it is in
XM, FM or AM modes. This seems odd to me.

Any one have any insight?