Here's an extract from the wiring schematic I did for building my loom. Note - mine has an intermittent function as well, the circuitry of which is not shown in detail here.
It took me ages to fathom the autopark out, as it turned out eventually the rotary switch in the motor was broken! I fixed it with a new copper wiper contact in the gearbox, but what a pain! Don't know if this is wired quite as standard but it works fine. Wiring colours are my own and may or may not be the same as yours!
