Dodge has built their minivans and ram truck in st.louis for years. And oddly enough, chryslers are stolen around here left and right. Same as detroit, chryslers are stolen 24/7 there. When I say "Chrysler" I amreffering to jeep products also. They are owned by chrysler and use the same ignition parts in the steering column.
Since Dodge build these car models in St. Louis, would you say that the thieves have connections or at a point in their lives were employed by the car manufactorer? If so, that may explain why so many of these car models are stolen because they may be familiar with how the cars are built and how easy it is to ignite a car without a key.
Just a thought I had.