How do I put all of the music in my iTunes library (12.2) onto my iPhone 6? Really frustrated with iTunes -- How the heck do I add the music in my iTunes library to my iPhone?

I'm a power user and I've been using iTunes and iPods since the beginning.

I'm going on a road trip tomorrow morning and I want to sync my iPhone 6 with my iTunes library -- just put all 15 GB of music on my iPhone so I can listen to it in the car.

Last week I installed iTunes 12.2 and I signed up for Apple Music.

I cannot for the life of me figure out how to sync my 15 GB iTunes library to my iPhone so I can use it like an iPod.  I don't want to stream music from Apple Music while I'm on the road, that requires the cellular network which is unreliable and also costs me tons of money in data fees.

Please help!!
I am assuming that you have your 'entire Music Library' downloaded on your Mac. This seems like a simple case. 


Plug your iPhone into your Mac.
Open iTunes
Tap the iPhone icon
Under the "Settings" section header, click "Music"
Click the checkboxes "Sync Music" and "Sync Entire music library"