Those instructions are are a bit more involved than what you need. All that is needed is a pair of 6 pin plugs and covers. Once you have those, it is a simple matter of removing the 4 pin, placing the wires in the 6 pin in the proper order. Nothing more to do, unless you want the city lights.
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72
'02 CLK320 Cabriolet - wifey's mid-life crisis
2012 VW Jetta Sportwagon TDI...at least its a diesel
Non illegitemae carborundum.