Hey there folks, Hope all is well in the bass world! I have a question. So I have a 2006 Warwick Corvette Rock Bass, active, four string. Has four knobs; volume, blend, bass, treble (I believe that is what they are). I also have a 2004 Warwick Corvette STD 4 string (German made) with passive pickups, three knobs; volume, blend, tone(I think). Both basses have MEC pickups in them. My question is, are these two pickup systems both indeed the same, and if so, can I take out the active preamp from the RB and put it into the German Warwick? Therefore, making the German Warwick active. Also, is it possible to custom install a switch that is similar to the push/pull active/passive knob on the German factory active Corvettes? Is the Preamp from the RB the same that they install in factory German Warwick basses? If not, any recommendations of after market pickups/preamps that have a similar tone as the factory MEC pickups. Thank you guys so much!