I am considering buying a 2011 RT-S SM5. I have heard the compressor is very noisy for the air suspension. My dealer is trying to talk me into a 2010 Audio & Convenience Spyder rather than the RT-S. The compressor noise is his biggest reason for suggesting I buy the 2010 Audio. Does anybody have any comments on this? Anybody having problems with the air suspension? What other selling points would there be for buying the Audio rather than the RT-S? I currently own a 2009 SM5. :doorag: