Hey Jimmier, no extra resistor that I am aware, no dash board light either. Seems like the part is a go between the brake pedal and the (CHMSL) 3rd brake light. I did read you could install at the fuse box if the (CHMSL) fuse is labeled independently or splice at the brake light itself. It was 5 degrees today, CF in garage and I have not a clue how to disengage the plastic panel to access the 3rd brake light on a coupe. I'm afraid I'll bust the plastic to install a $5.00 part. Unless I find a video or detailed instruction for removal of the plastic surround molding to access the brake light, I'm gonna let Rudy Compart do the install if I can get his attention. I have not received the part, it is ordered. Won't be driving the CF in temps under 38degrees (tire issue). Do you have resources, advice or a video as to how to pull the plastic housing under the trunk lid to access the (CHMSL) brake light?? Thanks!