Originally Posted by Yannick Tamer

>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."