Tail And Brake Light Question

Hi Sorry Put this question in the newbies topic when introducing myself.. been advised to post it in tech thread maybe some member or members can advise! hoping to give and receive advice on accessories which may also help other members adding accessories.

A few years ago I got rear ended lucky for me I was at a stand still at traffic lights and the Numpty car driver was only at crawling speed but still managed to run into the rear of my bike enough to push me forward I manged to lay the bike down but did cause minor scuffs.. he complained saying the tail brake light was small and not bright enough didn't noticed I had stopped even with traffic lights on red! yea.. me and the bike was not big enough hey! so my first accessory is to fit a second tail/brake light to my triumph speed twin 2023 model.. I've used the skearn p3 tail and brake led's on my bmw r1250 rs which as canbus with the skearn led's only having low power draw they did not bring up any error faults.. as any one fitted skearn or extra tail and brake lights to the triumph speed twin not causing any fault errors? as I assume the triumph speed twin also is canbus? also it would be very helpful if any member knows the triumph speed twin 2021 model onwards tail and brake wire colours.. as it got 2 wires or 3 wires.. are the tail and brake wires accessible under seat or by removing under tray? plan on installing a heal tech thunder box for any future elec accessories and plan on using the green live wire on the thunder box snap connector as a switch live and the black earth wire on the thunderbox as a earth.. which just leaves the white wire on the skearn to connect to the brake light.. well that's the plan any input on this would be most welcome..

bye for now will post with results.. lol...