I already have a totron remote for my rock lights if I install this light bar will the remote for the light bar interfere with the rocklight light bar

no , they dont mutual interfere as you use different remote.

What are the rest of the dimensions? Hight and length?

hi. the deepth is 3.5" ,the height is 3.1" length is 41.5"

Why is there 2 color choices for each section? It said “color A” then the selector has 2 different colors for each section. That doesn’t make any sense.

hi, could you tell which color do you want to choose? for example, if you want to choose white/amber , you can choose white/amber for each option.

Why is it asking for four color choices? Do this light have four colors within its self. And what is the asterix at the end of it for

hi, you can choose different color for each section on whole light bar . or if you want same color on whole light bar .