Good auto electronics place

We're getting a RAM Promaster van this Winter that's built out on the inside already with wall covering, a headliner, and such (so running wires inside would have to be done carefully). Want to install a 360° camera system on the roof so we can get that overhead "top down" view of the van for maneuvering in tight spaces etc...

Anyone have an auto electronics place they like that offers good products and careful installers ? We're on the far north side.