installing a starter button...potential clicking starter fix? HELP!!

my 1992 SVX has had the annoying clicking starter ailment...

im thinking that the problem lies within the wiring of the SVX's, being that the problem is more of a "hot" issue than anything else. ive noticed that SVX owners tend to have this problem frequently and being that mine has a legacy trans and starter - this isnt a starter problem within its self.

my plan is to bypass the ignition wiring altogether like i did on an XT6 i used to have. once i managed to bypass the wiring and install a button, i had no problems from then on.

the question at hand - does anyone know which wires to tap here?