Where are the preamp board + battery placed in a Sadowsky 4-string (one that has a pickguard and control plate)? Do they have a separate cavity for the battery/battery box? Or does everything (incl pots) live nicely beneath the standard Jazz Bass control plate? Reason I ask is that I'm thinking about puttin' the Sadowsky pre in my Fender Jazz, and I'm curious where everything goes in a stock Sadowsky bass... Thanks!