My '01 4.4 sport has the 6 CD changer (note: these are made by Alpine) - It's only skipped with really big bumps and I have the stiffer sport suspension - when did you have it installed? - I've got 19", so the 20" may not be a contributing factor - If it's a new install, you may have relief - If it's 3yrs old, it may be time for a new one - You might want to look at an Alpine unit at your local car stereo installer - It should be less expensive than the one that has "BMW" printed on it

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Mark _______________________________
2001 X5 4.4i topaz blue/sand Sport, complete Dinan S2 , hitch, V1, tint, BSW Stage 1, Alpine INA-W910BT
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