hummingbird GR16 GPS "unconnected"

CrazyBoy

Seaman Apprentice
Joined
Apr 13, 2009
Messages
47
Hi,

I just purchased the GR16 GPS module for my Hummingbird 757c fish finder and had it installed by what I thought were experts, after damaging my boat's dashboard and burning my xm radio during install, I just realised the GPS portion of my fishfinder does not show as connected, only the transducer shows as connected. Could they have fried the GPS module as well or from what I see the head unit drives power the GPS module so there are no additional connections as far as I see? :confused:
 
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