Thanks again Simon. The fact that the electrics sound in all 3 switch positions when the wiring is outside the body, suggests that it would probably be wires touching one another when installed inside. There is a lot of wiring probably in excess of what's required, but it's a difficult task getting it all installed cleanly. The bridge volume is close to the o/jack inside; there's a long length from switch to o/jack; there's crossovers aplenty so it'll most likely result in more taping. I'll remove the wiring tomo and have another look at all the connections (maybe do a re-solder just in case). will do the multimeter test too. Such a nice-looking model so I really want to get it fixed. Here's hoping.