No. You can use your backup. Music and apps are in iTunes on the computer and can simply be synced back on or they are in iCloud and can be downloaded again for free.Will it wipe my music if I do it through iTunes ?
What is Auxo?
Here's a thread on Auxo:
http://forums.everythingicafe.com/threads/appswitcher-the-jailbreak-way.100908/