>why do you want to hook it up to the serial adapter? does the power pin on your etrex cable connect to that?
Yes, I forgot to mention that I would hack my own cable with the etrex power connected to pin 8. (It could be any other pin that will not interfere with the serial adapter). Pin 8 seams to work ok for the usb adapter they sell on pfran.
Thanks for the suggestions.
I don't get what you mean by: page down to "Voltage Shunt Regulator."
