Well, these last few DTR experiments I've been doing with my laptop and the GPS, not with the empeg. I have only been doing straight through since I know the GPS works with the laptop with pins 2,3,4, and 5 but does not work with the laptop when 4 is detached. I just assume that if I can get the laptop working with the GPS with only pins 2,3,5 only then can I try it with the empeg.

But just in case, I just tried the pin 1 and 4 experiment with the empeg with both crossover and straight-thru with no luck.