I have a Spector NS2000Q5 with EMG-HZ pups. dimenions are 4" x 1.5" my bass has a EMG BT preamp eq what I would like to do is switch the bridge pup for a 'jazz' sounding pup. is there any way for an easy direct replacment?? also I would like to get the transducer/piezo sound out of my bass with out having to replace the bridge...any ideas?? thanks!