I recently got a 2007 model WK and could not get the rain sensing wipers or the auto headlights working. After investigating a bit I found that the actual module behind the rear view mirror is not there !
I got a quote from Jeep :
$97.5 for the unit
$150 for fitting and configuration
That seems a bit harsh to me. If I bought the module myself, would there be more to it than just fitting it to the windscreen, plugging in the wire and enabling it in the EVIC ?
(The picture is upside down for some or other reason ...)