So you did not add the debug serial to you board ?
FWIW, are you aware of this GPS module.
https://www.sparkfun.com/products/10890
I have made many GPS enabled devices and this one has been by far the best. Dont let the size fool you it picks up a 3D lock where the other cant.
and, its 1.8v so no level conversion is necessary. BTW, you can buy these from the source for $19.50, sparkfun just rapes people on the price.