From OverDryve:

• Tap the Settings icon in the top right corner of the screen.
• Tap OverDryve Setup.
• Tap Bluetooth.
• Make sure your phone is in Bluetooth pairing mode. This can be done on most phones from the Settings -> Bluetooth screen of your phone.
• Tap Scan for Devices on OverDryve
• Select your device from the list
• A dialog will appear confirming the pairing. Tap Pair on both your phone and on OverDryve.
• Continue to follow the on-screen instructions on your phone and on OverDryve to complete the connection and enable all features.

If you have any issues connecting, see the article Help for Connecting with Bluetooth.