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 ...

ON
This is the normal operating position after the engine is started. ...

Satellite radio reception
Satellite radio signals are best received in areas with a clear view of the open sky. In areas where there are tall buildings, trees, tunnels or other structures that may obstruct the signal o ...