'fleet/taxi' wiring bypass diagram.

are the connections at the terminal block 3 ring terminals on a single post? (sorry for the bifurcated post, fat fingered it!)
- Calls out 16ga wire from starter relay to ammeter red post, while 6ga from the
alt, I'm assuming that's to ensure as little loss from alt as possible, hence the
HD nomenclature?

Thanks for any clarification you can provide. Cheers!

Don't know what you are looking at. Ring terminals may be at the starter relay stud?

16ga MAY be fuse link?