2015 Spark 4x6 Rear Speaker Adaptor to 5x7

thingiverse

To upgrade your rear speakers from the standard 4x6 units, replace them with larger 5x7 models, ensuring a seamless integration. For the opposite side, simply mirror these modifications. This design specifically caters to the Phoenix Gold SX57CX speakers, renowned for their exceptional quality and worth every dollar spent. To ensure a precise fit, consider reducing the flange cut depth from 3mm to 1.5mm. The speaker's dimensions are 200mm x 146mm x 31.75mm, allowing it to perfectly fit on a bed measuring 165mm X 145mm if you opt for the split-in-half version and use four 1/8-inch diameter pins secured with epoxy. For maximum durability, recommend using black or gray material.