Thank you Steve ! I got lights to work ! You were right. Black wire with blue stripe. I have a question on running board mounting for Sport Trac. The set I installed are aftermarket. They seem a bit flimsy, and flex when you step on them. I used 3 brackets per side. They came with 4. Should I drill extra holes and add the 4th bracket??? Would that strengthen it up a bit? Should the running boards mount slightly underneath the vehicle door, or mount level and flush with the door? I am curious if some of the running board should extend underneath the vehicle. Sure does flex a lot ! Again, thanks so much for wiring info. The manufacturer couldn't even tell me how to wire them !