One of the seat heater control dial bulbs on my 470 has burnt out. Any other 120 series owners out there attempted to replace the bulb behind the control dial so it will once again illuminate when headlamps come on? Found a 100 series thread that says you can just pop out the control dial and slip in a new LED. Before I try prying out the control dial I wanted to see if any fellow 120 owners have done this. If so, do you happen to know the size bulb you used? Thanks in advance!