Anybody ever use them? I have a 96 mazda 626. It's got 5x7s in the rear so i was going to cut them out for 6.5s but im a dealer and the 8s are only $20 more so bigger the better right? naa, thats not always true, but the frequency response of the 210ca1 to the 165ca1 is 10 hz lower, so maybe get some better midbass. any thoughts?