Drilled and installed the TruTrak roll servo doubler plate and mounted the servo. Completed wiring to the DB9 connector for the roll servo. Checked the wiring pinouts between the roll servo and controller to make sure it was correct. Plugged in the servo and went though the ground check setup for the autopilot. The servo was going the wrong direction so I swaped pins 4 and 5 on the DB9 connector as indicated in the instructions. All seems be working now as it should. The final configurations take place during flight testing.