The Hi-beam tell-tale light was not introduced until serial no. 32434, so no hole before that.

If a heater or governor were never installed, the holes will have knock-outs.

The dash light switch is on the bottom lip of the dash. Used up to serial no. 116421.

• The hot feed wire from the starter switch to the ammeter + terminal.
• The charging wire from voltage regulator to the ammeter - terminal.
• The ignition primary wire, from coil to distributor.

The "Main" wire bundle hole includes:

• Headlight wire, from main light switch to dimmer switch
• Marker light wire, from main light switch.
• Horn wire

More on wiring here: CJ2A Wiring