So after owning a white 18, I traded it in at 2 years, on a 2019 Mustang GT (couldn't resist the temptation to pick up a 5.0, and it was a break-even trade, as the dealership didn't really know what they had). Then Covid, and a loss of the job, and that Mustang was the first thing to go...
Actually - I think I still have it. Don't have the car, but still have a shit ton of parts from it that I wasn't able to sell/get rid of. So it's still sitting in the garage. I'll find the box. Send me your zip, and I'll get you a quote.
So I have one of the non-plug and play versions that I bought, and installed (see earlier pix in the thread), but then uninstalled when I sold the Si. It's sitting in a box and needs a new home where it'll be loved ;) (don't want to steal any of your business tho)
Purple on the end, pink in the middle (the one that has green next to it), and that green one that was next to it. I had to watch the video on a computer so that I could make it really big to see which wires. The harness was labeled.