How easy is it to add an external speaker connection?

[Pierre]

I was talking to a friend about how the Ibanez Valbee seems cool as hell but I'd wish for an external speaker connection, and well, he made me realize it SHOULD be pretty easy... one plug for the speaker in, one female plug for the circuit where the first speaker was in, a hole in the chassis, and you should be good to go.
Any flaws there?