Stereo & Electronics - Rattling speakers help

Ok I replaced all my speakers with MAaudio. The subs by the rear seats are rattling a lot with almost no bass getting put to them. Is there an easy fix for this? I have a sheet of dynomat between the speakers and the body panel but its still doing it any help please is appreciated

bump ttt no one can help me on this

Did you buy the Ma's used or new? Did you use the correct polarity?

they are new and yes the polarity is correct it is ony when there is bass in the music I thought dynomat would fix it but its still there

Is it more of a crackling or a rattling?

It is a rattling when the bass hits like the speaker is in there loose

I am having the crackling thing going on in my car. Do you know how to fix that.

its either ur speaker is bad or theres some wiring issue like - + or some wire is exposed to ground...

A quick way to tell if your speakers are blown is to take your finger and VERY gently push into the cone. I don't mean to push on the center but rather push on the concave portion before the center cap. If you feel or hear a grinding, scratching, gritty sound/feeling then your speakers are blown. Push down several times and let the speaker recoil back to it's original position and repeat until you have figured out if it is blown. I have probably blown more speakers than you would like to know and I always used this method to make 100% sure. Omarrakeen may be right as well, if you have a wire contacting the body you will get a horrible crackling sound which will eventually ruin the speaker.