New and needing help...
 

I recently bought a 2004 3.9L v6 Mustang and i ordered aftermarket halo LED headlights... I followed ALL the directions and my dim lights wouldnt work. So i thought the new headlights were faulty... Today i went out to put in the stock headlights to go to work and now even on my stock lights the dim bulb wont work... Any ideas on how to fix? Any input is greatly appreciated! Thanks. -Dalton

was it just plug and play or did you have to splice wires, and when you say dim light do you mean low beams and high beams?