[1950Mercury]

Needing a little more guidance on this M&H under dash harness for 66 GTO w/ralley gauges 4 speed non air car. There is a brown 2 wires to a red plug about center of dash. On left side there is a fuse in a holder. I have no clue what for. More toward the right side there is a white wire with a plug and a gray wire with a plug. Again I have no clue. Then on the right side of the red plug with the 2 brown wires there is a tan colored wire with a plug. That one may be the same as the one toward the left with the black plug on it but unsure. I also see no wire for the e brake light in the speedo. area. I was thinking it might have something to do with the tach. I also have a tach harness also. Just one wire with a fuse. I have a wire diagram but it don't show this info. Hoping someone here may have used a M&H harness in the past and recall this.

[gtospieg]

Try to contact Pete Serio on this forum. He knows the wiring inside and out. He answered similar questions for me several years ago. He had the answers off the top of his head.

[Kenth]

Why not ask M&H?

[1950Mercury]

I have yesterday. Spoke with Darin. There are so many issues with this car. Just trying to sort things out. I see crap that makes me shake my head.

[1950Mercury]

On this M&H under dash harness there is a short wire near the fuse block with a fuse holder. Anyone know what that wire is for? This is a 4 speed non A/C car with the rally gauges. I notice the harness gas some extra wires such as volumn shift and a few other wires.

[Jeff Hamlin]

Accessory lead. I just tucked it up as I didn't need it.