Will I need to use the plastic insert for this speaker system?

[amycishere]

http://store.apple.com/us/product/TR979LL/A?fnode=MTY1NDA1NA&mco=MTIyNTQ1OQ

Have an ipod touch 2g.

[jmann]

I doubt it's been updated since the 2G. I'm sure it will work just fine though.

[big-blue-wolf]

If you are talking about the white dock adaptor, then you probably will need to use it. The specs don't appear to include any adaptor in the box.