Disconnect the negative battery cable, remove the hush panel, instrument panel trim plate, and A/C switch attaching screws, then pull the A/C switch out. Unplug the electrical and vacuum connectors at the back of the A/C switch and disconnect the temperature control cable. Position the A/C switch near the mounting location, engage the electrical and vacuum connectors and cables to the back of the A/C switch, connect the temperature control cable, install the A/C switch and attaching screws, instrument panel trim plate, and hush panel, then connect the negative battery cable and tighten the cable bolt to 11 ft. lbs. (15 Nm). Finally, reset the radio, clock and any other applicable electronic devices.