Console is easy, as you can basically pop the centre parts upward moving back to front and access the rest of the attaching hardware.
Airbags just disconnect the battery and let it sit for a bit. The seat plugs are directly under the seat. It's no trip mine.
It's getting to diminishing returns for noise control though. This part of the chassis is very stiff on the s197. Your efforts in the trunk floor are 90% of the solution that can be achieved. Maybe a bit in the doors wouldn't hurt.
An interesting observation: I had an early build 12 and now a lot build 14. The difference in noise control was quite marked. Now part of that is due to manual v auto but Ford was definitely evolving this as the went along here, more strategic in placement if material, a few extra smears if monkey snot on the rear inner fenders, for example.
2014 Premium GT, SGM, Brembo, Auto, Tech, Comfort, etc. GT500s, Steeda UCA, VMP auto N/A tune. 100 shot nitrous on BBR tune. Best e/t 11.38 at 120.85
2012 Premium GT, Candy Red, Brembo package, 3.73, MT82, Comfort, Tech, et al. Procal tune, Roush UCA, UMI poly LCA, GT500s, Steeda red bracket, Hoosier 28x10x16 bias drags. Best e/t 11.91 at 115.23 RIP