I'm getting a uke with a passive pickup, and I've found plenty of information on what I need to make it work plugged in-- clearly I'll need an amplifier and a preamp. My question is, how does it all connect? Run a cable from the uke to the preamp, and another cable from the preamp to the amplifier? Or run a cable from the uke to the amplifier and another from the amplifier to the preamp? Two cables anyway... right?