Mikael,
The link that Doug posted is for an early car, and the switch in your pic appears to be the later switch (with the resistor on the back of the switch). All of the replacement switches are the later type.
You will probably find a yellow/black wire that has two female spade connectors. One is connected to terminal #49, and the other one is connected to terminal #58d. If this is the case, then remove the yellow/black wire from terminal #58d. That wire is not used on the early ('71) cars when using the replacement switch.
I'll PM you with an article that I wrote for the POCA Newsletter last year.
John
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