as above, the mk4 adapter is ISO...and if your original steering wheel didn't come with controls then you won't have a remote connection on your vehicle's harness.
i believe it can be done with some research but would be painstaking as you'll need to run a new wire from steering wheel through the dash to the radio and connect it on the right pins in the adapters.
i installed the facelift FR steering wheel on VAZY's Leon where i fibreglassed over the buttons as he wouldn't have been able to use em