My 2012 wants a Remote Start installed... in 2026.

...and the internet is full of dead links and out-of-stock parts.

What's my best option here? I would prefer to do my own installation if possible, mostly because of a pathological hatred of T-taps. The OEM fob is fine, I don't need a lot of range.

(Background: I never saw the need for a remote start, but lately my commute involves getting on a highway about 1500 feet after starting the car. That's brutal on a cold engine, and sitting in it while it warms up seems silly. Remote start suddenly makes sense, but because I didn't do it 13 years ago, it's slim pickin's to find parts that're still available and documented.)

I've found that I can buy a new-old-stock OEM PT398-47110, but I'm hard-pressed to figure out whether it requires any sort of software tweaks to enable it after installation. (I have an old copy of TechStream and the clear VCI cable.) Any clarity here would be appreciated.

I've found a lot of references to the Directed DBALL, but it seems to have been discontinued back when dinosaurs roamed the earth, and it seems to need an XKLOADER2 to program it. I can find both units (and the TLTH2 harness) on eBay, but good luck finding the software. There are new Directed products that seem to do the same thing, but their site isn't exactly open about documentation. (I need an installer login?) Is that just how this industry is?