Join Date: Feb 2017
Location: Twin Cities, MN, USA
Yes, apply sound deadening tiles to the trunk pan and related sheet metal surfaces. The belly of the trunk is one giant kettle drum. Low cost, high return (in driving enjoyment), and easy to do. The trunk carpet lining is easy to remove and reinstall, check other threads for tips.
I think I used 6 or 7 tiles in my trunk, cutting them into halves and thirds and applying as a patchwork, as other have shown with photos. They really do a lot to knock down the vibes coming through that sheet metal and through the cabin.
Order some. On installation day, go for a one hour drive first. City streets and highway. Top up and down. Radio on and off. Then install the tiles, and then repeat your drive. You will be very pleased when that background humming/buzzing/white noise is controlled. The radio sounds better and the volume can be turned down to still hear detail. Modified exhaust systems will sound better. Stock exhaust systems will sound better. There is just a whole lot less white noise. Get them, they work.
"Il Viaggiatore", The Traveler. A.K.A. Via. 2017 FIAT 124 Spider Classica.
2018 Suzuki DL650 XT VStrom
I've always said, "If, one day, I can no longer ride a motorcycle, I'll buy a convertible." Life is too short. Don't wait to get your convertible.