unless your Mustang has a tach generator, it will not work. that system has no
power inputs, the generator creates a low voltage that is sent to the tach, the
tach is nothing more than a sychronis motor. Wiring is very simple, A to A, and
so on.
Matt Gunsch,
A&P,IA,Private Pilot
Riding member of the
Arizona Precision Motorcycle Drill Team
GWRRA,NRA,GOA