C230K seat module fix

[shanusanus]

I've been searching up and found a slight back whereby you can link the 12v switched to the perm live that the seat control module needs thus the module only comes on when the key is on and thus stops the drain on the battery overnight

Brilliant - although my car only has two wires BROWN and RED/GREEN

So how do I do the hack/fix on this? Anyone done this when there's only two wires?