Bluetooth phone controller problem
 

Bought a used 2008 Lancer GTS today. Everything in the car works great except the buttons on the steering wheel for the bluetooth phone controls. I can't set up my phone with the system. When i press the buttons they do absolutely nothing. Just wondering if anyone knows where to check wires, or what fuses to check as the owners manual and the diagram on the fuse box cover are less than helpful. Any help would be appreciated as the nearest mitsubishi dealer is over 8 hours away.