hi m8 glad u like it:grinning: i changed the bulbs by
taking the centre console cover panel off first
and then carefully pull the knobs off dont be too rough with the knobs as the clips can be brittle as i found out.
you can leave the actual unit in the car and using a thin bladed screwdriver carefully peel the face off the heater unit but again be careful not to over bend it or stress marks will apear or it will snap.
you should be able to replace the bulbs now in the unit.
just reverse the steps to re assemble:grinning:
the bulbs are 501's and i think that theres 2 or 3 i got a pack of 5 from Aceparts on ebay heres the link
http://stores.ebay.co.uk/ACEparts-Performance-Lighting
hope that helps m8