How do I sync music from my desktop to my iphone, when all my data is synced to my laptop?

Cody: How do I sync music from my desktop to my iphone, when all my data is synced to my laptop?
I don’t have any music on my iphone 3G that is synced to my laptop, It’s all on my old ipod nano which is synced to our desktop (where all my music is located). But now my 8GB nano is just about full, so I want to to add all of it to my iphone. Can I just sync my iphone to my desktop to add the music? Or will it mess up my contacts and everything?

Answers and Views:

Answer by Haley
I have an iPod touch ad I had the same problem til I found out u go under The settings o iTunes on ur desktop and turn off the automatic sync

Answer by Ivan
You will first need to backup your iPhone then you can try Syncing it.

Answer by Kevin
you can try PC Suite to sync these songs here is the website you can get it