Add Chipmunk body to Cocos2d Parallax Node?

Question

Is it possible to add a Chipmunk body to a Cocos2D Parallax node/layer? I have looked at everything I can find, and tried everything that makes any sense (or not). I simply cannot do it, the standard syntax throws errors and I'm not aware of another way to add objects to a parallax node other than [myNode addChild:myBody etc];

Any ideas?

Thank you.