the ambient lighting in the drivers door, along the silver trim, doesn't work. Before I go to the trouble of stripping the door, what is it most likely to be? Just a popped bulb? If so what bulb is used?
Why don't you take the silver trim off and check with the multimeter if there is power going to the bulb.
If there is voltage, check the bulb. If not, get it scanned with VCDS.
I don't think you need to strip the door card off to get access to it.