Adding interior lights to work shell

Good morning!!
So, I have this new 2023 Tacoma and I'm putting a work shell on it.
I'd really prefer to use the bed lighting circuit to power the interior lamps, it has the relay and wiring and I know what switch to get but..... What's the part number for the plug I need to hook up to the factory wiring in back?

 

https://fbchs.square.site/product/tacoma-2020-bed-light-t-harness/11

 

https://www.tacomaworld.com/threads/bed-light-aux-harness.713292/#post-25373753

 

I believe I got a harness for my Leer cap from @Puppypunter. Worked just fine - handed it to the cap dealer when I brought my Taco to them to install the cap. They actually wanted to know where they could buy the harness to make life easier for them. The interior light on the cap is wired to the bed lights and controlled by the factory switch in the dash.

 

That's exactly what I need to do.
I want to be able to verify off from inside the cab with the cargo switch rather than having to go in back and be able to plug into the stock harness rather than run more wires to do what it's already capable of.
A couple of LED strip lights and a pair of dpdt switches set up as 3 way switches will give me control from either side of the bed.