Start here. This thread links you to the Fmods thread where the files can be downloaded.
Fullscreen Android Auto/CarPlay Mod Is Here for Sync3 10P Screen!! [FMods Team 10 Pees] | Explorer ST Forum
You can also hop on FB and track down Phil Monsegur in any of the ST groups. He had the files already preloaded on the USB's and will offer support for you to do the install.
I DIY'ed mine myself and did have questions and messed up the file structure in the USB's so I had a few tries to get it to work. I figured it out, but it took me a couple hours. So it's really a time vs money thing to decide. If i were to do it again i'd just contact Phil and bang it out as quick as possible.
I used the "CSbyMark" wireless adapter, and there is virtually no lag with the FS mod. I'm impressed.
EDIT: If you plan on having the sync recall software update performed anytime soon, wait to do the FS mod. The recall wipes the mod and you'll need to redo the install after
