Mike - aren't you the one that has that really good thread about budget rebuilding your GN from scratch?
Almost like those crazy couponers who get $126 back - after buying the 300 tubes of toothpaste.
I expected so much more.
And I mean that fondly after reading that entire rebuild thread.
I think it was yours.
I would have thought you would post how you found some high quality Edeadener or super jute from recycled FedEx envelopes.
I was going to post this earleir - my sort of find of the week while dumpster diving.
My buddy was downsizing and tossing two reasonably ok mattresses.
Before anyone yells - Yuck or Eeewwww
No one died on them, nor did the mattresses have the telltale signs of looking like someone did (If ya get my drift)
They were good.
And since the resale value on a used mattress is zero - we took them to the dump.
Anyway, I noticed when we were tossing them, the tops / bottoms had a really nice layer of 1/2" jute + foam padding. + some linen like thin sheeting
So, in the vein of budget rebuilding - I sliced open the mattresses, and stripped the jute, foam, and linen sheet.
Perfect for all the pieces of my underdash panels and T-Top panels that use that stuff ( I have three T top cars - so that is a bunch of peices)
I'm sure jute isn't the best sound deadener, nor is it really expensive - but in this case - it was free!
Plus the foam, which I'm sure I'll find a use for as well.
2 queen sized mattresses yielded all that I will need - unless I buy more T top cars soon
I know this doesn't answer about that black panel behind the seat affecting anything - to which you inquired - but thought I'd throw it out there.
Also - I buy rolls of thin, cheappy, carpet in the teeny auto section at BigLot. Like 5 bucks a roll
It would be perfect for either installing in place of the back seat jute, or even covering a thin 1/8" or thinner piece of something.
3M spray adhesive and viola'
I'm not boom boxer so I don't know if it helps or hurts the audio to have a barrier between the thump thump thump and the passenger compartment.