Changing transmission fluid, where is the fill plug and how much does it need for drain and fill and what oil weight?

Here is the fluid type as requested:

Fluid Types
Manual Transaxle Oil
Type .................... API Service GL-4

Viscosity .................... SAE 75W-80
Capacities

Manual Transaxle Oil
Capacity .................... 1.74 qt (1.65L)

This video will help walk you through the steps of doing the job and I have included the drain and fill plug location as well in the images below.

https://youtu.be/WqDixYeqslI

Check out the images (below). Please let us know if you need anything else to get the problem fixed.