Why is it so difficult to get our doors not to resonate?!?! I spent the entire weekend working on my 2 front doors I put 15 sheets of dynamat on between the two of them and I still have resonance coming from around the tweeter and the window switches.... What extremes have you guys done to get rid of resonance? And anyone have a good way to stop the rear view mirror from rattling hardcore?

 

Because we drive Nissans

What brand are you using, which will also answer my question of how many sq ft per sheet are you using that you used 15 sheets?

The rear view is a neverending battle. Do you have the auto dimming one?

 

Well its a new Dynamat that hasnt been released yet but I got 16 sheets which was 50 sq feet... Yeah I do have the auto dimming rear view what can I do to stop it rattling? I thought about taking it appart and filling it with expanding foam or something...

 

Spray the non mat covered areas with cascade Vb1s pro . It turns vibration into low level heat -works for me and i have zero mat on my door panels. Just a few cans of that covering the inside.

 

Yeah I used some Spectrum on my doors not to long ago and that didnt seem to do much is that the same stuff? Theres rattling from the window switches what can I do about that...

 

Do you meant between where the window switch strip screws down onto the door panel? Around the seams?

 

Yeah the actual pannel where the switches are I think that it might be something with in the circut board or something...

 

You try sandwiching closed cell foam between the panels?