no sound out of my 8.3 farenheit deck

[wmblocke]

has rca pre sub connections. i have tried the rca to speaker connectors and still no sound, everything else works great. is there an extra wire, like ill or amp mem, or something to hook up to get any sound out from the deck? ro do i have to replace the rca plug in connection from the deck? and no the mute is not on and bluetooth does not indicate a call in or no connection

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