Continue on wiring harness (part 3)

TLDR

• Installed the shunt
• Continued to tidy up wire harness
  • Cable tied everything on the left rear of main spar
  • Connected power to cabin overhead
  • Connected tail harness
  • Connected GSA 28 for elevator
• Pneumatic lines

Details

Shunt

All holes are pre-drilled on the firewall. I added a few rivnuts and screwed the shunt, done.

Wires

I spent a significant amount of time tidying up the wires. Still not done yet, but made some progress.

Nothing is particularly difficult, but extremely time consuming. I ran the wires back and forth a few times to make sure they have enough length on both ends (rack, and wherever they need to be). And I started to cable tie everything from back to front.

Along the center console

Tail harness connectors

Cabin overhead wires

4 wires from the harness needs to connect with the cabin overhead wires to power the cabin lights.

I elected to use GT150 delphi connector just because I have a few in my tool box. The process was slow due to spacing, but pretty straight forward following the wire diagram from MWPB.

Pin #	Harness Wire #	Cabin wire #
A	AFR45B22	Front light positive
B	AFR19B22	Front light negative
C	AFR46B22	Rear light positive
D	AFR47B22	Rear light negative

Pneumatic lines

Also connected the pneumatic plumbing in order to finalize the length needed to run through the center channel.