Need Dash Wiring Harness Help

[petercory]

The Dash Harness in my 3.2 was replaced (possibly with an SC harness).

1. Can atone identify the orange wire and brown wire behind the Tach in the attached
photo and tell me what it should be connected to.
2. There is a Brown wire which comes out of the same branch of the harness as the
white Speed sensor wire; I've attached the brown (daisy chain) brown wire to the
Speedometer Ground Terminal, where does this brown wire go?

I have attached the Red positive lead to the first terminal of the Speedo, the next recess in the white plastic has no spade terminal, I've attached the White Speed Sensor lead to the 2nd Spade terminal, the 2 brown wires W/Red Tracers to the 3rd terminal and the daisy chain Brown Ground Lead to the 4th Terminal, is this correct.

Where do I connect the Brown Ground that comes out of the same branch of the harness as the White Speed Sensor wire. Are there any other wiring connections that are incorrect?

[SpyderMike]

Not sure if these help - from my 1985.

Back of the speedo:



Back of the tach:



I don't recall an orange wire.

[petercory]

Thanks for your input. My main concerns were/still arel:

1. Identifying the Orange Wire and companion Brown Ground wire (pictured ) that I can't Identify..
2. The attachment point for the Brown ground wire that comes out of the harness along with the
White Speedometer Speed Sensor wire.