My mate has just bought a MK4 1.6 sxi.
He's after swaping his Vauxhall stereo with a Sony head-unit.
He's got the ISO lead and bought a Autoleads remote adapter cable for his Steering Wheel controls.
Is it as easy as pluging them in to the back of the Sony Head-unit, then into the Vauxhall wiring????
It seems there is alot of connectors for the remote cable (vauxhall end) to one jack plug (Sony end)

Any one with a picture of the back of a Standard Vauxhall Stereo would be a great help.