The autopilot control module (AP74) harness is a D-sub25 female connector with four wires. The audio capability was not used since the HS34 was set up for audio. I wired a power wire to the E-bus, a ground wire to the avionics ground bus. A DSAB-A and a DSAB-B were wired in parallel with all the other device DSAB wires. The master EFIS is the D180 so the AP74 will communicate to the D180 through the DSAB wires.
The CherryMax rivet order came in today, therefore, I riveted the the VOR antenna doubler to the aft fuselage bulkhead and bottom skin. Tomorrow I'll run the coax cable from the panel to the tail and crimp on the BNC connectors.
Antenna doubler riveted to bulkhead and bottom skin.
