The multi-band antenna is on the roof of the vehicle. The antenna is used for AM-FM radio, OnStar, the SiriusXM satellite radio service system, and GPS (Global Positioning System), if the vehicle has these features. Keep the antenna clear of obstructions for clear reception.
If the vehicle has a sunroof, and it is open, reception can also be affected.
Radio Reception
Audio PlayersFuel Pump Removal Fuel System Fuel Pumps
Remove the fuel rail noise shield-(1).Remove the fuel rail wiring connectors from the fuel feedpipe bracket.Remove the fuel feed pipe bolts-(1).Remove and discard the fuel feed pipe-(2).Remove and discard the high pressure LH to RH fuel railcrossover pipe-(1).Remove and discard high pressure fuel pu ...