Anybody have troubleshooting recommendations for an '87 300SDL power memory seat? No movement on drivers seat on any adjustment, tried new seat switch, new fuse still dead? i have no idea where to go from here?

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jcciem
'94 SL5000 60,000
'91 350SDL 545,000
'91 350SD 197,000
'00 E55 AMG 77,000