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no sound from my rca ports but my car stereo comes on its reading every device.

Hi, Have you set the Line Output Mode? The settings for the Rear Line Out terminals (which I assume are what you mean when you say the RCA terminals), are found on p.28-29 of the User Guide. Check the L/O Mode is set to your particular set up, The SUB. W Freq and SUB. W Level settings are only available if you have set L/O Mode to SUB.W , which means that you have a Sub Woofer connected instead of speakers. Here is a link to the User Guide. http://www.manualsdir.com/manuals/134438