Trailer Braking

I have a 2015 SR5 with the 4.6. It does not have the tow package. I am trying to figure out the best aftermarket one. Any ideas? From what i can tell it should be prewired for one near where i place the start key at.

 

P2 or P3 controller, mount to right of steering wheel, you will need an adapter cable, and it connects up near rear of left kick panel, I believe a blue connector

 

I just installed the Redarc brake controller in my 2010. with the (Tekonsha made) adapter they offer to fit the factory harness. My factory plug was under the left kick-panel. We've used it a couple times, works great and an easy install.