GML11

I just bought an MXR Talk Box to use with my Helix LT. I thought I could just run it in front of the helix like a regular pedal, but it doesn't work. I am not that proficient with setting up the Helix (just got it). Looking for directions on how to set it up from start to finish if anyone can help? From plugging it in an where (In front, effects loop, etc..), to inserting a patch if necessary. Thanks