We installed the kit-supplied wire terminals (crimping works but soldering is better) and then inserted the terminals into the new kit-supplied 10SI/12SI-type rectangle connector. Be sure to orientate the wires correctly when installing them in the clip--the stock blue wire goes to the alternator's 1 terminal while the white wire should go to the 2 terminal. Note: If you've upgraded to an aftermarket capacitive-discharge ignition system (such as an MSD or Crane unit), you'll need to wire a special diode (included with the MAD kit) somewhere along the blue wire that leads to the alternator's 1 terminal to prevent run-on problems.
If you're installing a 63-amp 10SI alternator, simply reconnect the alternator's factory charge wire. If you're installing a big 94-amp 12SI unit, use new 8-gauge wire (supplied) to replace the stock 10-gauge power wires that run from the alternator to the horn relay and from the relay to the junction block, often located near the battery on pre-'71s. We ran MAD's supplied 8-gauge wire from the alternator's charging terminal to the horn relay, retained the old 10-gauge relay-to-junction block wire, and then connected the alternator's old 10-gauge charge wire to the terminal block. "Doubling up" the two stock 10-gauge wires creates two paths of energy travel that roughly equate to using one new 8-gauge wire--all without disturbing any of the factory in-harness splices.
Disconnect the factory four-wire connector that attaches to the stock (externally located) voltage regulator mounted on the driver-side area of the radiator core support. Use wire cutters to cut the four wires exiting the connector, then...
...connect the blue wire to the brown wire. Next, connect the white wire to the red wire. Afterward, the stock external voltage regulator can be discarded.
Here we installed the new 8-gauge wire (supplied) from the horn relay to the charging wire stud on the back of the new 10SI/12SI alternator. The MAD kit comes with the proper terminals and heat-shrink terminal insulators for both ends of the wire, but you'll have to get an M6x1.0 nut to attach the wire to the 12SI alternator stud. The charging system should then be ready for use. CC