I have a pair of both the non-bose oem speaker brackets for the rear of the z. Those have oval openings for speakers. I also have a pair of decent rear bose box's with adapter plates I made to fit 6.5 inch round speakers with plenty of room on the inside for the coil/magnet of the speaker. These are bo, I paid 20 for the pair of brackets and I'm not trying to make any profit, but I'd like to break even. I'd prefer local pickup since these aren't worth shipping, but if you're dead set on it I can.I live in Beulaville NC, just outside of jacksonville.
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Speaker boxes/adapters(rear) and oem non-bose brackets rear - youngbloodz20:13:35 05/09/13