It's not there. Also got a wiring fax from them but it's for a 4 plug Packard type. They were very helpful.. to a point. After receiving the fax and realizing it was of no help I wrote with an attached picture but they never responded.
If you can find info on a TCC602A, made july 22 05 let me know.d
Did some checking w/ a VOM to see if I could identify any of the posts but it's really not my forte'. Would like to know what boat this went to. Nice looking tach. http://www.qualiteitems.com/images/tach2.jpg