Bought off eBay. Here's the listing: https://www.ebay.com/itm/13-15-Subaru-B ... 2749.l2648
I tested it and it gives readings between 0.66 and 4-ish volts on two separate channels. EV-West sells this part and you can read more about it here: https://www.evwest.com/catalog/product_ ... uhdouvd490
It's in very good condition, but will not fit in my application, so I'd like to offer it to anyone who needs it. Make an offer, shipping included in the USA.
Thanks!