Annoying sounds from cars at stop light

I was driving with the stereo on, put my hand out the window, ( the left hand not the right hand ) and felt the door panel. It was resonating like crazy and the volume was not turned up. So that got me thinking which for me is a lot more difficult then it seems. 
We all know that for every action there is an opposite and equal reaction. As it regards speakers this means that the sound off the back of the drive is equal to the sound coming off the front. 

then it seems

I think is should be ’than it seems’, sorry I have a thing with English...


Otherwise, I share your observations. I had to listen to a mobile boombox today and it made me think that the occupant must have gone deef. ;)
GB

My daily living is saturated with cars playing music loudly and certainly no jazz.
 Hip Hop and reggeton.
Bronx NY for you. I put headphones and continue with life.
I hate it still but I had learned how to tolerate it.

gdnrbob

Well you have hit a nerve. I majored in English.  English Lit. 

Thanks for the correction. Would you mind editing my posts, the pay sucks but we offer health care and a pension plan. 

So these stupid drivers are only 6". I would postulate that the waves coming off the back directly towards the metal sheeting on the door get that resonating and perhaps at a much lower frequency then the driver is producing, remembering that larger more massive objects at a lower frequency. 

So now we have speaker the size of a car door pumping out bad bass.