Cut a splice for the OAT wires. Used some extra black wire on hand since the polarity of the wires didn't matter and twisted the pair using my drill. Ran the wires thru the corrugated black tubing and ran it up to the ADHRS via the pitot lines. I'll connect the OAT at the wing root later. Installed the zip ties in the tie downs and loosely tightened the zip ties around the appropriate wires. Tried to figure out the rest of the wire routing on the firewall. Think I'm gonna install some more corrugated tubing and secure that per Vans drawing up the side of the firewall stiffeners.