I work at a Dodge sprinter dealership in Canada and of course the big question or concern is about block heaters on the 2007 models. I received word today from Detroit that Dodge/Mercedes will not have anything available for another 7 months, which will take us out of the season that we need them the most. My question is, has anybody been able to find a heater that will work on these units even if it is an inline heater?