[bigbluetraverse]

Well I upgraded the speakers and installed an AMP.

The issue I started having was a loud rattle in the back passenger door under heavy base.

It sounded like a loud chirp from something in the door rattling like mad.

I decided I would dynomat the door to try and eliminate the rattle.

No need to do the door the way the back door panel is designed two of the push pin mount bases have no structure around them and move all over the place.

The entire post is what has been vibrating so bad.

I added dynomat to the bottom of the door panel and built it up to the post then added another chunk right over it now they don't move at all.

So why didn't they just build them not to move.

Regardless if you have a loud annoying rattle form the back doors this is the issue.

You will see what I'm talking about as soon as the panel is removed.

 

[Zubius]

Thanks for the info! this might be where my rattling is coming from....

Once I get it back from the dealer, I'm takin the rear doors apart. Are there any special fasteners on these door panels or are they the standard push in type that GM has used for a billion years?

 

[bigbluetraverse]

Three torex screws and then just pop pins.

One screw is behind a removable cover behind the door latch and two others are under a cover on the handle. The handle cover just pulls off easy.

You also need to pull the black cover off at the back top of the door panel going up the pillar. It just pops off but has to come off before the door panel.

 

[Zubius]

Thanks! this made it much easier..