Okay, just a quick search and I found this.
https://legacygt.com/forums/showthread.php/jdm-folding-outer-mirrors-walkthrough-107120.html?t=107120&highlight=jdm+mirrors
And this.
https://legacygt.com/forums/showthread.php/install-jdm-mirror-powerfolding-sap-non-power-285469.html?t=285469&highlight=jdm+mirrors
And a quick *plug* for AW4BYT. He makes PnP harnesses for this.
https://legacygt.com/forums/showthread.php/hi-jdm-folding-mirror-harness-284093.html?t=284093&highlight=jdm+mirrors