Make sure you have your AirPods in the proper pairing mode for non-Apple devices before you attempt to connect to the mounted tablet. Here's how:
- With your AirPods in the charging case, open the lid.
- Press and hold the setup button on the back of the case until you see the status light flash white.
- When your AirPods appear in the list of Bluetooth devices, select them.
If you are still having issues after following these steps, then there may be a hardware issue with the Bluetooth mechanism in the mounted tablet for your bike, and it may need to be replaced.