Sirius Mode Selection
While in Sirius satellite radio mode, press S-MOD (22a) (also the SHIFT/SCAN button) to select
from four available modes: Normal, Category, Direct Tune and Set Skip Channel. When the
Category or Set Skip Channel modes are selected, the corresponding icon appears in the display.
When the DIrect Tune mode is activated, the alphanumeric display appears.
Click on this link to get the user manual:http://www.asaelectronics.com/techpdf/MSR4050G%20Owners%20Manual%207-11-05.pdf