Received a firewall oil cooler mount so I mounted it today. Doublers on the backside. I found a great spot. Pulled the panel and mounted the G3X GDU's and then installed the GSU and GEA. Drilled the firewall to run a few engine wires aft. Drilled the exhaust and mounted the EGT sensors. Then installed the CHT sensors. Decided to start the Avionics harness. Set up a work space at the dining room table and started with the PDF and MFD harness's.