non-bliss - On a non-bliss assembly you connect your resistor leads to the two outside wires connected to the blinker bulbs socket as shown in photo below.

Photos photo uploaded by Mark S. on 2020-09-25T03:20:27.22Z

bliss equipped - For a bliss equipped truck, you will want to use the blue-green wire (ground) and the grey/brown (power) -or- green/blue (alternate power) for your resistor connection.

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