i have just bought some M class 6x9 memphis speakers and i was wanting to know i was reading about them and it said something like it has a swivel mount tweet and they are coaxil speakers and i was just wanting to konw can i remove them or what. will some one help me and all so with my speaker placement in my car for my subs i have two kicker L5 12 in subs with kickers box sounds great with all my componets and coaxil speakers and stuff i was just wondering cause when i pusch them all the way back of the trunk then they sound diffrent and then when i scoot them up to the trunk latch it sounds better is that ok and should i do that will some one help me about my situation with the swivel tweet thing and the sub placement in my 98 buick centurey thanks......