[Hotrod25]

I have no idea what my daughter did to the radio but I swear the car vibrates now when the radio is on. It's Boom Boom Boom and the car shakes! It drives me crazy. What did she play with - I need to know so I can change it!

[Skippy]

It sounds like she turned up your bass. It is usually a knob on the stereo but could be a button somewhere (sometimes connected with fade/balance).

[Lindsey]

She probably not only turned up the bass but turned on the booster as well. And if she turned off the treble that would make the bass sound even louder.

[Retread]

It's the bass for sure. That's what you hear when cars drive up to you and you want them to turn down that music and ruckus immediately. It's noise pollution if every I've heard one. Your daughter needs to be courteous of other drivers and pedestrians when she is out and about.

[harleydoll]

I'm all for a loud bass, but I prefer the entire car not to shake. Definitely check the treble and booster settings as well. There should be buttons on the radio indicating each one.