1999 Chevy Cavalier Z24 Convertible

I have a question.A while back my #1 and 2 settings on my heat/blower switch stopped working. Didn't bother me too much because it was summer, and since I have a convertible, I'd just put the top down. But, this winter my #3 setting died, leaving me with only the highest setting (#4) working. I asked a local repair shop, and they told me it was my blower switch and that it was booked as a 6-hr job at $80/hr. Now, I'm no mechanic, but they really didn't give me the time of day, let alone listen to my problem. My dad thinks that if he can get my dash off, he'd be able to replace whatever is wrong. But I do not know if it is actually the SWITCH or the RESISTOR. Can someone help!