Photo 13: Find the dipswitches on the top side of the breadboard. I've circled them in the photo ... they're quite small. This is the default setting.
Photo 14: Flip the dipswitches so that both are off (You should only need to flip the left one). This is the high sensitivity setting, which is recommended for the 318ti. After flipping the switch, screw the box back together.
Photo 15: I used a strip of Velcro to attach the control unit to the bottom of the electrical carrier.
Photo 16: You need to drill a 3/4" hole in the cardboard panel removed earlier for the microphone. Since there were no measurements in the installation manual for the 318ti, I took an estimate of the location and drilled away! It was close.