hi i have a 2003 dodge ram 3500 cummins diesel. after i used a 3way splitter for the 12v outlet i lost all power coming out of the three outlets ! i checked the fuses and they all seem to be ok !? also i noticed my lights in the cab (above the mirror) dont work either !? what could it be ? thanks guys

 

I think there must be a blown fuse that you missed. Are you checking them with a test light?

 

Check the splitter. If you didnt hardwire it, they may have a fuse in the cig plug of the adapter.

 

i checked them all, i def. recheck all the fuses. what could be the problem with the inside cab lights ?