only violet wires on all the car are low beams from floor dimmer switch up to low beams in front as mentioned, temp sender signal, horn relay source ( engine bay up to 69, underdash harness from 70 ) and backup lamp on body harness to tail lights
low beams are white traced on engine bay, dunno into the cab. I can't recall the horn source being traced... isn't the horn relay on 70s located around there close to headlight switch ? If so, that could be very well the horn relay source wire? althought shouldn’t get that low into the dash area.
beams are sourced just turning on headlights and headlights on ( on low beams selection ), but horn source is constant from batt side of fuse box
low beams are white traced on engine bay, dunno into the cab. I can't recall the horn source being traced... isn't the horn relay on 70s located around there close to headlight switch ? If so, that could be very well the horn relay source wire? althought shouldn’t get that low into the dash area.
beams are sourced just turning on headlights and headlights on ( on low beams selection ), but horn source is constant from batt side of fuse box
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