Did you figure out these two wires
The small door lock and door unlock wire
I’m reading it’s a red and yellow wire and red and white
The red and yellow works for unlock
And the red and white doesn’t look like it’s working for lock
Please check the 12volt.com for a complete wire colors.
It is easy to install as LONG as you know where to look. Behind the junction box is one location you will need to remove to get to.