Alternator replacement on XR5 Turbo/ST225/RS mk2 Step by step by OEM Denied Performance

How to test for a faulty alternator and how to replace it on a Focus XR5 Turbo / RS mk2 step by step by OEM Denied Performance. Genuine Ford alternators available from https://focusonperformance.com.au/alternator-xr5-turbo-rs-mk2-genuine-ford/ NOTE: Earth strap to gearbox check was not show in video as vehicle was driven in thus confirming earth path was already good.