Last night I was trying to get my heated seats working, for some reason they just suddently stopped working. THe fuse is fine, so I cleaned out the switches, still doesn't work. But in the meantime I had found that the two heated seat switches actually light up! I didn't know this as it was burnt out since I bought the car 6 mo ago. This bulb is the same as the auto tranny shift light (see what gear you are in). Now, the headlight, front/rear fog, antenna, rear defroster and sunroof switches, are they supposed to light up as well? Do they use the same bulbs as in the auto tranny and heated seat switches? I checked the faq, but the part number I have from Volvo (3523964 used in auto tranny light) doesn't match it. Also, how many bulbs are there for the above mentioned switches? I guess I had more bulbs out than I thought. Thanks.