I was reading and I found several things on the internet about building your own piezo pickup out of a piezo element from radio shack. (http://www.harmony-central.com/Guitar/piezo-pickups.txt) I have questions. 1) I know they make piezo bridges but has anyone done this on talkbass.com, Y"know make ur own? 2) Would it work on a Pbass how would you mount it? 3) I wonder if it could be wired up like a two pickup bass in passive mode. R.H.