http://www.thesamba.com/vw/archives/info/wiringt2.phpmaybe try one of these... i don't know the year your car is but you will find something that helps
on my car the wires go like this
61 to the warninglight in the dash
D- goes to the dynomo, the big plug and large wire
D+ is a double pin, one for the cable of the batterie and one to the lightswitch
and DF is the smaller wire that goes to the DF plug on the dynamo.
that is it if you have a dynamo, if it is a alternator the wiring is different
hope it helps
and try to find out if all is 12 or 6 V...