Adding sound deadening to the Elantra. I drive about 60 miles round trip to work and after 7 years, the road noise has gotten pretty bad. I took the door panels off and covered each fastener locating with padding, taped up connectors, and added sound deadening material to the inside of the doors. I moved to the trunk where there was next to zero sound deadening material and covered it as well. My back hurts, and it’s probably only a couple decibel difference at most, but some improvement and a reduction of rattling in the doors will make my commute a lot more enjoyable. It’s hard to hear my audiobooks over the road noise.
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