Diamond K412SNMO. Used it on my 2011 Equinox. Will be using it on my 2017 Traverse. It uses RG316U coax. No problems fitting it through tight spaces.
Larry
I don't have an Equinox but the wife has a Ford Edge. It too has a fairly tight space for a lip mount on the rear hatch. However, I used the HD-5 variant by Comet and it fit fine.