I was sure my back doors had 6 1/2" speakers and uncle murphy laughed. Do they sell a conversion or adapter kit for the doors? I made 1" spacers but they will not sit flush due to the contour of the inner door panel. The vehicle is a 2006 Dodge quad cab and will be sticking these in the rear doors. What are my options? Speakers are DDW6.5 (Digital Designs). TIA