I have installed a number of them and they work great. It is a simple install. There are three different model that BackOff makes. You can go to the website at www.SignalDynamics.com
and click on Products, then Lighting Control. There are three models to chose from: "BackOFF", "BackOFF XP" and "BackOFF Brake Hold". On the item page you select there is a wiring diagram and instructions link. When order the item, you will receive the same instruction info.
Regarding the brake light wire color it will be either solid red or red with a yellow stripe, depending on the year and make of your bike. If you need further help let me know, I'll be glad to help. Walt