2003 Battery draining info request

My fiancee has a 2003 Tundra with the battery draining problem. After spending hours trying to track down the problem without any results, I consulted the internet and found this post, "2003 Battery Draining" here.

This issue has been going on since we first got together back in 2018, and I have no idea just how long it had been going on. So, the info regarding the recall listed, (EL015-03) in the above thread makes sense to me, however, Toyota no longer makes the repair kit 82133-0C010.
I was hoping that maybe someone here had this repair done on a vehicle they still have and could tell me the part number of the actual Relay used in the "Sub Wire Harness". I can make my own "Sub Wire Harness" but will need this Relay as they call it in the recall bulletin. It appears to only have two connections, so I'm not sure how it could be an actual relay.

I already asked my local Toyota parts guy for the info, but he had no clue.

I originally posted this on Toyota Nation and a member there suggest I try here. I have found out that turning the headlights to off, instead of the automatic has seemed to kill the battery drain issue, at least so far. But I would prefer to make the repair. Thanks

 

According to the TSB, they are only fooling with one conductor(pin 20) of the 1A4 connector and rheostat R3.

That said, perhaps unplugging the Tow Tail Relay until someone comes along with relay info or harness info..