Heater platying up and light bulbs

[gazzab]

My heater was going off today without me pressing the button. Anything obvious? Is the heater etc behind the dash?
Think one of my front main beam light bulbs has gone. Are these as much hassle as Chimaeras bulbs to change?
Thanks
Gary

[gazzab]

Aha ! My fag ligher was repaired the other week which involved removing the stereo. So that might have disturbed some wiring in that area?