sounds like the flasher can is FUBAR.
no lights means flasher/fuse
lights mean fuse is working but flasher isnt operating
also wtf "aftermarket flashers wont work" please explain?
I'm pretty sure mines got a hella one in it, all i did was get 3 male and 3 female terminals. made them so i can plug it in the orginal relay pins and retrofit a hella relay. easyyyyy!
want a part number?