I can see there is a gulf between what Volvo want to do and what their customers should reasonably expect them to do.
If a customer pays £600 for Volvo to install a 13 pin connector and tow bar for a caravan then they might expect them to do so.
Even if historically there was no ignition switched power "fridge" (pin 10) there is now a good reason to do so PLUS it is now part of the ISO standard. To be more exact, Volvo do install a pin 10 as part of the dealer fit- just no return which should use pin 11.
A modern caravan NEEDS switched power at pins 10 and 11 for the fridge and charging/lighting relay and permanent power at 9 and 13 for charging itself.
Volvo with it's presence at caravan shows plugs the towing ability of it's cars and in particular the tow assist fitted to the xc60 if it can't get the basics right of fitting essential power supplies for caravans then it's all a bit pointless.
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