I managed to dislodge the ring that the mirror connects to, and have apparently toasted the little ribbed plastic bits that move the mirror left and right (or, if there were four, to handle all directions, I;ve completely dislodged and lost two of them).
I think the safe bet is a new motor assembly.
MIRROR ADJ. MOTOR
G99662404800 - Genuine Porsche
Price online is: $167.91 for a new one.
Hoping someone is parting theirs out.....