- 1). Visually inspect the area beneath your dashboard and select a location for the battery selector switch, where the switch will not interfere with other controls or wiring. If you must move wiring out of the way, move it aside and secure it, out of the way, with duct tape. Drill a hole in the dashboard sized for the battery selector switch. Use a hole saw.
- 2). Take the black "negative" cable off the negative posts, identified by the letters "NEG" embossed into the battery next to the post, of all batteries aboard with a 3/8-inch open-end wrench. Heat the solder on the solder lug marked "IGN" on the rear of the ignition switch with a soldering iron. Pull the red battery cable from the terminal. Slip a ring terminal over the end of the battery cable and crimp the terminal onto the wire with a pair of wire crimpers.
- 3). Crimp a ring terminal on the end of the positive cable of the other batter. It will be red. Remove the nut from the post marked "1" and "2" on the rear of the battery selector switch. Pull the red, "positive" battery cables up through the hole in the dash. Place the ring terminals of the red "positive" battery cables over the "1" and "2" terminals on the switch. Replace the nuts on the terminals and tighten them with a small adjustable wrench.
- 4). Cut a length of 8-gauge AWG long enough to reach from the battery selector switch to the ignition switch. Crimp a ring terminal on one end of the wire and solder the other end of the wire to the "IGN" solder lug on the rear of the ignition switch with the soldering iron and rosin-core silver-bearing solder.
- 5). Remove the nut from the "0" terminal of the battery selector switch. Pull the ring terminal of the cable you just attached to the ignition switch up through the hole in the dash where the battery selector switch will reside. Place the ring terminal of the wire over the "0" terminal of the switch and replace the nut.
- 6). Install the battery selector switch in the dash. Reconnect the negative battery cables.
Subscribe to our newsletter
Sign up here to get the latest news, updates and special offers delivered directly to your inbox.
You can unsubscribe at any time
Next Post