Gps maps with zero off gps

[Mxmark4]

Is there a way to get lake maps with zero off gps? I would love to have some actual use out of it besides just setting speed. Mine just shows a big blank/tan screen when you go to the map.

[KnoxMojo]

Gotta buy the navionic map card from the dealer I'm pretty sure. Contact Zach, Cam or Ginger

[HFarr]

I actually use it a good bit. Our lake is not all that deep, so I use it to follow the river channel that runs through it to stay in the deeper water for surfing.

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[Mxmark4]

So after getting boat back today from the great boating disaster of June I had I took a peek under the dash and sure enough found that I have the USB for GPS maps plugged in under the dash. Still no maps after unplugging it and plugging back in. Asked the dealer about it and they supposedly had another customer with same issue recently that apparently fixed it himself. They ate going to ask him what he did and get back to me.

[HFarr]

I wonder if those usb's can be copied?

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