Ford Maverick Sub Adapter Plate for Dayton Audio DCS165-4. Mounting hole is shifted for a bit better fit from original model. It has holes for 5mm brass inserts.
This requires cutting of the short leg of the support on the left side of the sub enclosure, see pictures if this doesn't make since.
The author remixed this model.
Shifted for a bit better fit from original model and added holes for 5mm threaded brass inserts