2012 Tundra turn,brake and hazards

Hey there I am new here and I know this has been covered a few times however my situation seems to be difficult! I am trying to diagnose hyper flash on my 2012 tundra. I recently installed a flat bed,(still in progress). I needed more room for sheet goods for work, and for a flat bed camper build. Anyway I tried modifying the two sold dongles by removing them in the flasher module. Unfortunately with no success with fixing hyper flash. I am going to led in the rear.

 

I would rather remove this module altogether and build a custom module to support my needs . But need the correct wiring and diagrams with details of the correct wiring color.