Just as the title says, i have a magnetic pickup and piezo pickup being blended by a preamp on the bass but the piezo is overpowering the preamp and causes some distortion. can i add something small onto the wire to lower the piezo volume? resistors or something? (electronics newbie here)

Hi. I noticed your post on the DB side, and came over to track you down. I think that the best way to lower a piezo signal is with a capacitor in parallel with the pickup. Unless you know the capacitance of the pickup itself, choosing a capacitor value is trial and error. I would suggest trying 0.001 and 0.01 microfarad (uF) values. Here in the states you could find them at Radio Shack.