Notice in big black letters where it says MS-I?

follow this writeup for MS-III: http://miataturbo.wikidot.com/MS2_a

you should also jump s12c to js9.

The tach input stuff is the red, green and purple wires. Here's the docs on the 99-00 miata: http://msextra.com/doc/ms2extra/MS2-Extra_Miata.htm


get the 40 watt iron from radio shack.. it's $7.99.

Sweet thanks again! For some reason I thought that was for ms2. I'll pick that iron up today