You should be able to download patch 1.01 when you launch the game. You must be connected to Internet.
Here's Cycloniac's tutorial on how to implement custom music:
Xbox 360 Installation Instructions
1. Import the songs to your computers media device (I.E ITunes, WMP, etc.)
2. Burn the songs you want to a music CD. I recommend CD-RW so you can re-use the same CD
3. Copy and paste the songs to your Xbox360 hard drive
4. Make a playlist for the off play songs
5. Load up NHL 14
6. Go to the menus and find the custom music section
7. Insert your playlist into the wanted section of an NHL team
8. Repeat this process for the AHL, CHL, Euro leagues etc... (You should only have to do it once per league)
9. Go play a game and enjoy the custom play songs
PS3 Installation Instructions
1. Copy and Paste the folder with said songs to your USB drive
2. Insert the USB drive into your PS3
3. On the XMB, go to the "music" section
4. Click on your USB device. You might have to press triangle to "display all" the files
5. Find the album on your USB drive.
6. Copy and paste this album to your PS3 hard drive
7. Go to the music section on your PS3 and sort by album
8. Press triangle on the folder and make a new playlist
9. Name it NHL 14 BIP or whatever
10. Load up NHL 14
11. Go to creation center and go to custom music
12. Go to the off play section of any team and insert the playlist
13. If you want the break in play music to apply to all teams click yes
14. You can then do this for all the other leagues if you so choose. It's all up to you
15. Enjoy!
NB: Goal horns include both the actual horn and the goal song. In game, they are entered in the GOAL HORN slot. NOT Goal Song.