I'm almost done converting my S4 N/A into a TII. I'm using the N/A harness. I'm not worrying about the twin scroll solenoid, so I think all I need to do, is deal with 1R.

I'm not installing a knock sensor right now, so what do I do with 1R? It's a power steering switch right now.

 

Juat depin it. Or if you don't have pwr steering, don't do anything. There won't be anything at the other end anyway.