See also:

XMTM satellite radio reception tips for antenna on the windshield (for U.S.A. only — if equipped)
For some models, the satellite radio antenna is fixed to the upper right hand corner of the windshield. The XMTM satellite radio receiver that is fitted to your vehicle receives the necessary s ...

For U.S.A.
The following information has been compiled according to Code of Federal Regulations “Title 49, Part 575”. ...

Adjustable level of each volume
...