[Gav]

It’s not a big deal.
Obviously the VAT has to be disabled in the computer.
The plug packs need an ignition supply as the supply comes from the BCM in a standard car. (Anti theft)
Pink wires are ign, orange is permanent 12vdc and black is -ve.
The rest is pretty much plug and play.
Lists of the other cables can be found on line.
Google your model and I’m sure you will find it.
If you are competent electrically, you will do it easy.