All you have to do is get a dipswitch relay from a 140/164 or later car
(VW works OK too). The wires that go to the footswitch are pulled back into
the engine compartment and you can wire it up with only one or two more wires.
One goes to the pull segment of the turn signal switch, in the middle of it.
The relay mounts right next to the other relays on the left side.
May need power for the relay, but I am not sure of this (been a LONG time!)
Anyway it is easy to hook up, works very well and gives you the headlight
flash option (useful for one-lane bridges) and you can still dim your lights
if your left foot goes to sleep.
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George Downs Bartlesville, Heart of the USA!