Before you use the FM transmitter to listen to audio files or calls, turn up the volume on your BlackBerry device to the highest level, and then adjust the volume on your vehicle's stereo system to a comfortable listening level. Make sure you turn down the volume on your BlackBerry device when you are not using the FM transmitter.

Once you have tuned the BlackBerry Visor Mount Speakerphone VM-605 to your vehicle's radio, you can program frequently used FM channels in the quick access keys on your vehicle's radio. See the documentation for your vehicle's stereo system for more information.

1. Press the FM key. The BlackBerry Visor Mount Speakerphone VM-605 announces an FM channel.
2. Tune your vehicle's radio to the same FM channel.
3. If the reception is unclear, on the BlackBerry Visor Mount Speakerphone VM-605, press and hold the Volume Up key until you hear "searching". The BlackBerry Visor Mount Speakerphone VM-605 announces a new available FM channel. Tune your vehicle's radio to the same FM channel.