The difference between the A/C loom and the non A/C loom is the inclusion of the 2 wires that go to the A/C pump and the length of the wires to the alternator as it is relocated, they can be extended if need be.
Home to black Alfa Romeo 159 3.2 V6 Q4 ,green MGF VVC and red MG Maestro T16.
MG - the friendly marque.