Do the 67"s have front speaker mounting pattern and dimensions the same as the 68-72? I want to put a front speaker of some sort in the Satellite to go with the 6X9's in the rear.This ebay ad http://www.ebay.com/itm/260901123867?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT says this fits 68-72 Roadrunner. It looks the same as the one I have, but does anyone know it Plymouth changed something that would prevent it's use in a 67? Don't want to cut up the door or kick panels to mount front speakers.