Home quality undercarpet padding will help. It can be a DIY project but you'll have to remove most of the interior trim (dash stays). I did my Insight with a noticable noise reduction, sorry didn't measure the dba.masscommuter said:How do I cut down noise at highway speed?
Again it is illegal to wear headphones or earbuds while driving a vehicle! It is also illegal to have a stereo up so load as not to be able to hear other vehicles or distract the drivers attention from the road.masscommuter said:I've wanted earbuds for quite a while.
I just wonder how these could be wired in to the radio.