To realize what it is, you need to understand how sound works. The signal is just a sine wave that goes over and below the flat line. Lets say you have a range of -1 to 1 for your RMS power. Your amplifer can go higher then that for short periods of time. If you push the amp it goes higher, but there'* a limit to the signal strength. When you go past that, the peaks and valleys of the sine wave are cut off, and the signal mimics a square wave. This is dangerous for speakers, and will blow them after enough.
Your CD player is skipping because it is shaking. It may need a backstrap installed, i know mine does.
'06 Vee Dub GTI 2 door Tornado Red
- 2.0 Turbocharged, Intercooled, Direct Injected, 6 Speed DSG, Underbody Aero, 17" Classix
- Moonroof, Bi-Xenon headlamps, Interlagos Plaid Sport Seats, 6 Disc In-dash, iPod integration, GTI Monster Mats (winter)
'93 Bonneville SE Purple Pearl H4U package - picked up June 23, 2003, Traded-in June 28, 2007...