Ok, this is the explanation on how to wire the intermittent relay.  The text in the diagrams was in Danish, so I have translated the keys here.

These are the keys for the intermittent wiper diagram:
E22- Wiper switch with intermittent position "j"
J11- Relay for intermittent operation
T1a- Single connector
V- Wiper motor

          ---------- Instructions ----------

This is how you wire the intermittent relay:
1) The wire from connector 53 on the switch to connector 53 on the motor must be
disconnected from the motor. Connect this wire to connector 53S on the relay.
2) A wire has to be installed from 53M on the relay to 53 on the wiper motor.
3) A wire has to be installed from connector S on the switch to connector S on
the relay.
4) A wire has to be installed from fuse 10 on the fuse box to connector 15 on
the relay.
5) A wire has to be installed from earth to connector 31 on the relay.

Tip: If you get the proper Rabbit switch with the contacts inside, also cut off
a part of the wires from the switch, then you have something to install
connectors on.

See the wiring diagram for wire gauge in mm2.

PerL
73 Variant L