Noise deadening question

[TPeg88]

I am wondering what you guys think the best sound deadening products are out there. Mainly for road noises. I like listening to my music without blaring, so the quieter the better. I have heard there are spray options for under the car things, but am unsure of what products are legit or not. Thanks for the help!

[dunston]

This is the stuff I used in my Miata on the doors and worked well. Sound Deadening Materials for Noise Reduction from Second Skin