If your 1998 and newer Ford radio has the phone mute switch on the face. Or, your  General Motors vehicle has a factory installed RDS radio... YOU ARE READY FOR Cellular Surround Sound!
NOTE: RDS radios are standard equipment in 2000 and up cars, small pickups and small SUV's and 2003 and up large trucks and large SUV'S (excludes Cadillac cars).

Cellular Surround Sound is an incredible upgrade that will integrate your cellular hands free kit into your vehicles factory sound system. The benefits are:

1. Cellular Surround Sound for will mute the factory radio whenever a phone call is made or received.
2. Cellular Surround Sound plays all of your calls through the factory sound system.
3. "CALL" or "PHONE" will appear on the radios display.
4. Your radio's volume knob will control the volume of your cellular phone calls.
5. When your phone call has ended, the radio volume will return to the factory set lower level. No startling the driver or passengers.

  Please Call On-Site Wireless at 1-866-818-5885 if you have any questions....

For GM Vehicles with factory RDS Radios use with systems without ONSTAR, DELCO, BOSE, or CD-Changers...