Depending on your sync version, hit the aux button, hit menu, and then cycle down the menu to select source, hit ok, and then cycle down those options until Bluetooth audio shows up. Hit ok again and it'll push audio from a paired Bluetooth device.
Either my phone is broken or my truck is. I've had this truck for a few years. Never been able to connect. My daughter's iPhone no problem. Toyota corolla no problem. Frustrating
