I found this site to have real clear instructions. 12-VOLT NEGATIVE GROUND 3 WIRE INSTRUCTIONS

The Idiot light is nice to have, but can be eliminated from the wire going to the ignition or to the ignition side of the ballast resister.

Personally I would install it.

Last edited by Phak1; 09/16/2020 2:53 AM.

Phil
Moderator, The Engine Shop, Interiors and Project Journals

1952 Chevrolet 3100, Three on the Tree, 4:11 torque tube
Updated to: ‘59 235 w/hydraulic lifters, 12v w/alternator, HEI, PCV and Power front Disc Brakes
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