The AUX fan wiring went to one of the relays in the fuse box so I removed it from there and ran it through 2 open pins on the C101 (3 & 19) to get the signal to the ECU.
This addition isn't necessary for the swap because it seems that when the sensor isn't present the ROT always shows 7.5C less than the Coolant Temp. Still nice to have the actual temp though.
I also realized that a 350mm steering wheel blocks the top of the gauges so I went with a 370mm one, matches the interior better than the other one as well.
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