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Need to drown out your shouts of joy? Crank up the Civic Si Sedan's powerful stereo.
Standard Audio System Features for Civic Si Sedan
Trim Level Power (watts) AM/FM/CD Digital Audio Card Reader XM® Radio[2] MP3/AUX Jack USB Audio Interface[3] MP3/WMA Capability Speakers
Civic Si Sedan 350 Standard     Standard Standard Standard 7 including subwoofer
Civic Si Sedan with Honda Satellite-Linked Navigation System™[1] 350 Standard Standard Standard Standard Standard Standard 7 including subwoofer
[1] The Honda Satellite-Linked Navigation System™ is available on Civic Si Sedan models in the United States, except Alaska. Please see your Honda dealer for details.

[2] XM services require a subscription after 90-day trial period. Subscriptions governed by SiriusXM Customer Agreement; see www.siriusxm.com. If you decide to continue your XM service at the end of your complimentary trial, the plan you choose will automatically be renewed and you will be billed at then-current rates until you call XM at 1-800-967-2346 to cancel. Fees and programming subject to change. Available only to those at least 18 years of age in the 48 contiguous United States and D.C. ©2011 Sirius XM Radio Inc. Sirius, XM and all related marks and logos are trademarks of Sirius XM Radio Inc. and its subsidiaries.

[3] The USB Audio Interface is used for direct connection to and control of some current digital audio players and other USB devices that contain MP3, WMA or AAC music files. Some USB devices with security software and digital rights-protected files may not work. Please see your Honda dealer for details.