Hey Guys i have a wiring problem on my 1992 Dodge w250. A couple weeks ago i had some problems with my interior lights staying on. I messed with the switches and still couldnt get em to go off.. so i pulled the fuze so it wouldnt drain my battery. A week later i notices my radio didnt work...i pulled it out and had no power to the radio. So i got curious to see if my interior light worked so i put the fuze back in and the lights came on along with the radio...but my lights are still on...Any help?

 

something is grounding to the radio