Syncing Audiobooks to iTunes = Data Loss?

Question

Data synchronization

I have an iPhone Xr, I want to upload an audiobook to it, but I can’t do it, because first iTunes needs to check the “sync audiobooks” box, but if I do this, it offers to erase everything from the iPhone. What kind of game is this? I can not understand the logic of this program. And what does "Synchronize with THIS MEDIA" mean? C this is with what?

After Android, it seems like some kind of game

Answer 1

Use the AnyTrans for iOS program. is on torrents and w3bsit3-dns.com. upload it as a regular file to a USB flash drive)) and no worries with iTunes
Yes, iTunes is unfortunately extremely crookedly molded, unlike iOS and the Apple technology itself