Unit will not tune to certain channels. An example is Sirius channel 50, it is a channel that should have programming on it.
Channel 49 works as expected and when I hit channel up button, radio tunes to channel 51. Likewise, with the down channel button. If I try the 10 digit keypad and type 050 enter, radio stays on current channel. There are other channels "missing" along the way that according to Sirius have programming that I cannot receive.
For troubleshooting -
I have had SIrius folks resend the signal to my unit 3 times.
I have disconnected the Sirius tuner and Sirius Bus Interface