Help with Tow lights

[Twinflyer2]

I bought my titan without the pre installed tow package figuring that all I had to do was plug in a wiring harness and bolt on a tow hitch.. Well, both the tow hitch and the wiring harness went in with no problem but only the signal and brake lights work the running lights do not work. I added a $49 fuse in front that was supposed to lend power to the trailor running lights but still no luck. The Trailor and wiring harness are working so the problem is with the truck... Any suggestions..

[squatch]

This worked for my xe king 4x4. Under hood pass side relay box you will need 2 relays labeled trailer tow 1 and 2. #1 the rear one is for parking lights pn 25230-79945 aprox $40 from dealer. This is all you need for small trailer (no brakes) and 4 wire connector. #2 aprox $30 is for everything else-battery lead,brakes ect. turn signals are hot and ground is good without relays. For everyone else, the wiring is snapped to rear frame drivers side behind bumper. 7 pin for rear of "NISSAN" 7 pin rv bladed connector. No t-connecter needed or avail. I hard wired mine. Hidden hitch class 3-4 fits great w/hardware 15 min job. aprox $130 on line. Hope this helps!