Ammeter Bypass a Must?

The gauge hasn't moved in a bit. Then I broke the ear on my alternator. Bought a lifetime from auto zone. Didn't know it was shipped to China for a rebuild. Grrr. Had issues when a VR lead broke. Replaced that. Alt was putting out .01 more than batt voltage with field grounded. Replaced alt. New vr from China. So ordered a MP USA unit. Just was wondering, if the gauge being dead would affect things...and would just jumping it would alleviate any issues? And do I need to use another volt gauge? Where is a good source for a new factory one?
Thanks, Rusty... Sorry for Y'alls Massive Loss Brother

Thanks for the condolences. It was a blow for sure.

Well yeah, If the amp gauge is DOA, I don't believe the alternator will charge, because the circuit will be broken. I think that's right.