Wiring question

Hi. I need to repair my tailgate wiring loom on my 2002 plate Rover 25. FOUR wires have split which are;



Black ------------ 2.5 square mm - Heated Rear Window (heater elemet) - earth wire



Orange ----------- 1.0 square mm - Central Door Locking - wire 1



Pink -------------- 1.0 square mm - Central Door locking - wire 2 (all models mk1 and mk2 except 2004 mk2 onwards where wire 2 is ground wire)



Brown/Green ------ 1.0 square mm - Rear Screen Wiper Motor -wire 2.

What type of wire do I need? There's so many amp different wires, not sure what I need. Can anyone help?

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