Hot Rods Sun Super tach 2 wiring

Are you still able to get parts for these? I'm missing the 4-prong pigtail from the back and not sure what I could improvise for wiring to get this to work.

 

They still sell the super II new.

 

The wiring part is easy, but I have no wires to work with. The harness is missing.
If I could get the thing apart I could solder on new wires.

 

https://www.jalopyjournal.com/forum...r-how-to-update-your-vintage-sun-tach.297171/

 

RmK57, the Sun Super Tach ll Model 7901 is no longer manufactured by Sun. The Sun company is no more for quite some time. The company then became SunPro and now is Bosch. I use the original Sun Super Tach ll's by Sun purchased off eBay as it has the vintage look. Go to eBay search Sun Tach and there are Sun Super Tach ll wiring harness for sale right now for $14-$17. I've used them before and they come with the connectors ready to plug into the back of the tach. If you have any questions send me a PM with your phone #.

Gary

 

Does the RED wire go to the "all time hot stud " on the ignition switch?

 

Ignition "on", otherwise it'll drain the battery.