The cd player on my 06 street glide(harmon kardon) skips with minnimal road vibration

1-check condition of CD
2-be sure fairing brackets on bike are not broken
3-be sure riser bolts are not making contact with the bottom of the radio

if all of the above are OK, it's either a defective CD drive or bad SDRAM circuit (40 second buffer memory). The unit will need to be repaired. For repair options, contact Iron Cross Audio. www.ironcrossaudio.com