Well
I don't know if this will help, but I had a similar rattle coming from that area. I fixed it by taking my glove box completely off and dynamatting the metal behind it. The rattle would only come out when I hit rough road like railroad tracks or multiple potholes.
For some reason there was nothing behind the glove box but metal, and we all know what metal on plastic sounds like! Also check all of your bolts and make sure they're tight.
On a separate note there are some metal hook things behind where your vent cover is (the one by the windsheild) I have read of some members somehow getting some foam between those clips and the firewall and eliminated rattles that way.
I don't know if this will help, but I had a similar rattle coming from that area. I fixed it by taking my glove box completely off and dynamatting the metal behind it. The rattle would only come out when I hit rough road like railroad tracks or multiple potholes.
For some reason there was nothing behind the glove box but metal, and we all know what metal on plastic sounds like! Also check all of your bolts and make sure they're tight.
On a separate note there are some metal hook things behind where your vent cover is (the one by the windsheild) I have read of some members somehow getting some foam between those clips and the firewall and eliminated rattles that way.