Underbody Lights with Brake/Turn Signal Integration

[dank_nipples]

I recently got this underbody light kit: https://a.co/d/fAwJbur

I want to put it on my 2014 Forza. It has a feature where it will turn all the lights red when you brake, and also integrates L/R with your turn signals to flash yellow on whatever side when turning. This is a cool feature that will increase my visibility so I am interested in utilizing it, but I am wondering what wire I would splice into and where the best access location would be.

Any insight that anyone could provide would be helpful. Thanks in advance!