on a few bass songs i play in my vehicle, it makes this weird rattling sound. my conclusion is that its either the door, the speaker or the sub... can you help me here?
disconnect one of your speakers for a minute and fade your stereo to the speaker that is disconnected. and turn the volume up til u hear the rattle, from there you can tell a lot more than when your speakers are all going. this will let you hear just the bass notes and whatever else is rattling