alrighty.. back from dinner.
The whole point of adding dynamat or other Deadener products, is to add MASS.
Mass prevents vibrations at various frequencies. Adding mass to a vehicle, especially a forte, is fairly inexpensive to get results of luxury cars.
If you closed your Forte door after a good deadening, it sounds like a BMW's.
Another factor for Forte owners who upgrade their speakers, is if you put some serious power through them, and they are mounted to the OEM speaker "collar", the plastic vibrates too,
I was doing a little reading on the DIYMA forums about Clay-like products.
I went to home Depot (Canada) and found this product:
I know it's not the clearest picture, butI'll try and explain it for people looking to get their own similar product.
I asked for, -A product that's clay-like, non-soluable, and non-drying. I explained that it's a product used to pack PVC tubes outside of buildings where conduit goes in.
They mentioned it's also used as a duct sealer.
It comes in little bricks, about 1 lb in weight, sealed with the wrapper above.
You may want to wear rubber/latex gloves as this stuff is a little sticky.
Take the product out, and TRY to get the silly layer on the back to peel off.
Divide the product into 4 clumps. and roll it into a "cigar".