I wanted to post an update from this thread,
https://www.irv2.com/forums/f115/trailer-lights-455669.html
Thanks to the wiring diagram provided by 1v3fr33ord1, it says in the diagram to cut wire if amber turn lights, which I have. However dont cut if you have the 4-7 trailer plug, which I have. Well guess what, it was cut. Spliced back together and bam, I got brake lights.
Thanks for all the help. This is a great site.
Now to fix my ABS light on