i have pioneer 6.5 3-way speakers in my door....91 honda prelude......and i have a problem with them. when ever i listen to songs with decent bass, there is a vibrating sound that comes from the passanger side. or at least that is where i think it is coming from. im allmost positive that the speaker is not ripped or torn in any way. i have taken the speaker cover off of the door only part way and looked at it, and from what i could see, it didnot look torn. i dont know if it is hitting something when the speaker is moving, or if it is just vibrating or what. it is really annoying and i want to know what i can do if anything. Thanks for any help that anyone can give me!!