Quote Originally Posted by DonDon View Post
Hummingbirb Matrix 27? One came with my new boat and it only works part of the time (low voltage indicator comes on) and when it actually does work the GPS doesn't work at all. NO SIGNAL
Do you have an antenna(gps puck)? and you will need 12 volts. I think they give a low voltage warning at 10.5 or there abouts. What will ya take for it?