Bose Companion 3 Series I Volume Control Pod 9 Pin T31 -Genuine.  I have no way to test this piece, but I have no reason to believe it doesn't work as everything else I found with this works. You can pick it up for a good price!

Please refer to pictures for the full condition and item specific details. Please note that you are purchasing the exact contents pictured and only what is pictured. If it is not pictured, then it is not included in this listing.

Will be shipped with care, bagged and in a box.

Any questions? Please feel free to ask! 

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Thank you and enjoy!