Ford 6.5" door speaker adapter ring
thingiverse
I recommend printing this with PETG, maybe ABS, PLA is not a good idea due to heat and it's tendency to sag/ warp, it does not NEED supports, all overhangs are hidden. 20 ish % infill +/- with 3+ perimeters is recommended, but I won't tell you how ti live your life. This is made to fit my 2016 Focus ST, but it'll likely fit many more cars. One is slotted for wires, the other you can make your own with a dremel or drill. loosely based off Metra 825605 It wasn't designed to use as little filament as possible, it was designed for long term strength.
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