Ive ran out of space with my first generation Nano and i'm thinking of converting to a larger sized new generation 3 Nano. I have the iPod Hi-fi speakers and i am wondering it will dock correctly, or if the functions will still work properly.
I'm not sure whether I can just use another dock on the top and just put it in, or how do i connect it with cords of some sort?

Thanks for helping a noob :)