Does anyone have the dimensional specs for the siding used on PUMA campers. I am replacing the exterior “spealers” (yes, they actually say spealer on them) because they sound horrible. I would like to 3D print some spacers so I can use a deeper speaker and contour the spacer ring to the siding to minimize the caulking gap. This is a pic of the siding. 3” repeating pattern. 3 hi and 3 low lines.