Rear LED Tail/Brake Light Wires

[MFP]

I will try this approach as my other post bombed....
Looking to buy/install a Denali B6 auxiliary light with a license plate mount.
I imagine one of you folks at some point has added an aux. running/brake light on the rear of a S10.
My S10 is not close by right now so regarding the tail/brake light unit wires, where are they located so that I can save myself from taking everything off to locate?
Where would be the best spot to tap into the 3 wires (tail light/brake light/ground)?
What are the colors for said wires?
On my '13 the rear tail/brake light is the only LED type light on the bike.
Would this aux LED tail/brake light install be straightforward or is there something I must do to make the tail and brake light
function operate properly?
I have tried to look into this to figure it out on my own with the usual resources but obviously no luck.
Here is a simple diagram from Denali's website.

Thanks in advance.
Cheers,
MFP

 

[NJGreg]

You probably done figured it out, but being there are no blinkers in that light no need for digital flasher so should be good to go. I tapped the wires for my top box into the harness under the passenger seat and ran it out from there. My set up is only brake and blinkers.

 

[AlanSmith7]

I think it's good as it is like this. Digital flasher looks good but in some cases, it is useless so it's up to you.

 

[FM Rider]

I just added a rear brake light to my 2016 ES. Found the brake wire on the left side under the passenger seat enclosed in a rubber covering. There were 3 wires; yellow for brake, black for ground and dark blue that I assume was the taillight,