Pete Cresswell - find a piezo sounder diagram for your truck ?

4 still in the parts box, one used as a continuitytester....a small siren.

I came up the Interstate for 2 hours just now once again finding the turn signal was hidden by the steering wheels top, the beep beep by CH 66.

post in alt.resistor suggested a parallel circuit with diodes..but on what where

or a relay on the grnd side of the switch.?