Does anyone where if or where one could buy the internals of the seat switches?

I have two (90' w124) here that have broken headrest and backrest control sticks and another (93' w201) with a broken whole seat fwd/back stick thats broken...

I can fix them both if I just had the proper parts. I've taken these things apart numerous times...

I've never come across a place that sells just the internal parts, only the whole assembly..so I thought maybe someone out there might know..

Thanks!

-Kris

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