Hi all, hope someone can help me here

I bought a cheap Clavinova CVP-20 a while back with no sound, turned out to be a simple fix of spraying the volume slider with electrical spray. Nice

There was no stand or pedals with the unit so I've recently bought a second hand pedal unit in the hope that i can somehow weight/anchor it in position

I've run into difficulty with the connection though, pretty sure I've got the correct pedal unit for this model but it doesn't fit the connector on the underneath, wondering if anyone could shed any light and advise me. Something missing? Can this be connected incorrectly and permanently damage the unit?

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TIA