Just had it apart and fixed it! It was as i expected a bad solder joint, works perfect now. Trouble is, i put the thing back together and all was working fine and then another bulb on the buttons went out. Tapped the dash and it came back on. Then the damn warning lights on the right hand side of the instrument panel wasnt lighting up when i turned the ignition on so played about with the wires behind and they came back on. Ive never known a more fickle dashboard illumination set up than these damn things and the variety of bulbs used is mind boggling! Why not just use the same style bulb instead of about 4 different kinds?