Aiwa CDC-Z117 Car CD Player

I bought this CD player from Best Buy for about $100. It looked good and had good sound. Installation was easy and did not require more wiring than that provided by the box. I liked it's display from the very beginning, and the sound was good even with the factory speakers. As soon as i started moving in my car, all my hopes for enjoying music went down. It's got NO ANTI-SHOCK!!! How could Aiwa make a CD player for a car and not include anti-shock. It's annoying specially in rough roads, where you can not do anything better than listen to the radio. I kept it for about 2 months and sold it for $90. Other than the anti-shock, I really liked the display which would not dim with direct sunlight, easy to use controls, and mostly the line input, since I have an MP3 player that I connected there instead of listening to interrupted music.