[Tigers] Non-tiger Miata question

[James E. Pickard]

Sorry to bomb the list, but does anybody know a Miata expert?  I've converted
a 1990 model into an electric vehicle.  Now I need to wire up the tach, but I
can't figure out which of the numerous wires is the signal.  Any help would be
greatly appreciated!

Jim Pickard
B9473298 ('65 Tiger)
AN5L/12109 ('59 Sprite) - sold
2003 Mini Cooper
1990 Electric Miata
Lafayette, LA