You are going to have to eat this one dude.
You are trying to put the 7m into a mkii. Your cars wiring harness has to be stripped out. You may call the place you bought the motor from and see if they can hook you up.
Wiring harness's are high dollar man.
Dude. Use my guy.
www.horsepowerfreaks.com
Get the digits......, dial them.
When the automated crap picks up, Dial ext. 103
You'll be speaking to Dave. He's a busy man so keep trying.
Tell him Mike pointed you in his direction.
If he has what you want he'll hook you up with a solid price.