maps for Humminbird 898 si c

Need info on Navionics or Lake Maps for Humminbird 898 SI C. Specifically need topo maps for Weiss Lake, Al. Also have Minkota iPilot and want to interface the 898 and iPilot for auto navigation. Web sites for HB, Minkota, Navionics and Lake Maps aren't very clear.
Any help or recomendations will be appreciated.

Thanks,
jetree

:bash

The "Follow the Contour" feature is only available with the iLink compatable Lakemaster cards...
MinnKota iPilot Link: Information Resource

I cannot find where Weiss Lake AL is covered in the Lakemaster Southeast Region chip...(tho they are mapping new lakes continuously)....
LakeMaster Mapping Information Resource

Here is the link to the Lakemaster "Request a Lake" if you're interested....
http://www.lakemap.com/Request-a-Lake/#.UTbSuu69LYU

Navionics has maps for Weiss...(Navionics will not incorporate the "Follow the Contour" feature of the iLink capable Lakemaster/iPilot/Humminbird setup)..
Weiss | Navionics

Lakemaster is now owned by the same Johnson Outdoors that owns Humminbird and MinnKota and that's why they can offer these technologies to talk to each other

Rickie