Ok just a quick question. I got some really nice Infinity kappas 63.5 for my jeep. Just wondering, but what is the general opinion on accessories like Dynamat or brown"something" that help dampen outside noise and create a stiffer surface for the speakers?
I've used Dynamat in a couple of my own cars and a few I've done for customers. It is an awesome sound deadener or damper and I highly recommend it as long as weight or money isn't an issue. I'm not sure what you mean by a stiffer surface for the speakers though.