GMC 2500HD electical Problems
 

I just bought an '02 GMC 2500HD. So far I love the truck. It has a few little electrical problems that need to be worked out. I noticed that my interior dome lights and cargo light in the bed do no work. I know they worked when I test drove the truck. I played with the dome lightoverride switch a few times. That didn't fix the problem. I started pulling fuses that I thought might have something to do with the problem. I pulled the daytime running light fuse and put it back in. Now my daytime running lights don't work. The fuse is perfect. Anybody have any light to shed on my problem (no pun intended!)? Thanks in advance.