Installing v3 triton led switchbacks

[paniaguae640]

I need help locating the positive headlight wire because this is supposedly the wire that dims the turn signals when the headlights are turned on. Thank you. I have a mazdaspeed protege

 

[hornsfan10609]

Low beam or high beam? There are only three wires for the headlight bulb, low beam pos, high beam pos and ground.

 

[njaremka]

Low beam or high beam? There are only three wires for the headlight bulb, low beam pos, high beam pos and ground.

prtege actually uses a ground switched circuit. the headlights are positive, low ground, and high ground

 

[JDM323J48]

Tap into the park light.