I have a 99 dodge ram 5.9 and I just recently installed a aftermarket cd player and now my dome lights dont work. Does the wire harness have anything to do with it, I wouldnt think so but just wierd that it quit workin after i installed radio. Any info would be great.

 

Fuse or wire, also when I bought the '99 I have now I had no interior lights. I had 3 bad bulbs.

 

Had a similar problem. Bought my truck from a kid who just ripped his head unit out and apparently left some wires exposed. I didn't have a replacement for a while so they stayed that way. Apparently they short circuited and blew a fuse that made the dome lights go out.Can't remember the name of the fuse... it was a 3 letter acronym. But that fixed it for me.

 

Check the IOD fuse...

 

^^^Ahh, that was it.