Hey guys,
I have an 04 F150 before they offered the DVD prep kit. Now I have a factory DVD with the audiophile HU. I can't find the plug to plug in the adaptor. The gentlman that I bought it from told me where to find the plug but I can't find it. I have found the Subwoofer plug and that is ready to go. Any help you can provide is greatly appriciated. It appears that I need to cut the head liner but I am not sure where.

Thanks Guys!