The auxiliary battery power junction block is mounted in the trunk of your Impala police vehicle. It is located on the passenger side support strut behind the rear wheel housing.

This junction block is split to provide two circuits and can be used to connect customer-furnished equipment directly to the battery through 8 gauge (8.0 mm²) body wiring and fusible links. A maximum of 100 amps (1200 watts) can be connected. Torque the connections to the studs to 11 lb ft (15 N·m). It is fed by two fusible links of 50 amps each.

To connect the customer-furnished equipment at the junction block, use the following steps:

1. Disconnect the negative (-) battery cable.
2. Connect the customer-furnished equipment positive leads to the junction block terminals and tighten to 11 lb ft (15 N·m).

The ignition must be turned off and the vehicle vacated prior to connecting the negative (-) battery cable to the battery.

3. Reconnect the negative (-) battery cable to the battery.
4. Set the time on the clock and radio pushbuttons as needed. See "Audio Systems" in the Instrument Panel section of your owner's manual for more information.