I recently bought a rear view mirror with the auto dim feature for my 2022 F-350. I bought it from ebay so it was used. When I received it I found it has a 16 post male connection whereas my truck has a multi post female connection. Would anyone know where I might find a conversion harness to connect the mirror to the truck and/or a part number?

 

A conversion harness is probably not going to exist. Your best bet is to get this pigtail so you can at least get it to be able to plug into the rearview mirror. For testing purpose, you might want to use probe pins (16 of them) and insert the pins into your existing connector and connect the other end to the 16 wires of your new pigtail. To make permanent connections of course you can then de-pin or cut or splice your existing connector to the 16 wires of your new pigtail. Assuming your rearview mirror with auto-dimming feature is compatible with your vehicle and your BCM module won't complain and you have all the wiring diagrams with you.

 

Thanks for the info. Much appreciated.

 

That Motorcraft repair harness doesn't come with the non-insulated butt splice connectors so you might want to get a kit like from Amazon. One of the biggest advantage for non-insulated butt connector is the consistent diameter all across the wire, especially at the joints which you don't want that to become to thick when you have 16 of them, that's why do not use any nylon or vinyl insulated butt connectors (too thick at the joints), they are only being used by lazy car alarm/stereo installers.
I'd first crimp all 16 butt connectors to all 16 green wires,16 crimps total on the bench, easier than making all 32 crimps while the connector is hanging from your headliner. You might have to shorten all the green wires if there is not enough room to tuck all the wires back inside your headliner.