Quote Originally Posted by wheels70 View Post
Whenever I hook up any electronics I always go straight to the battery and put a fuse link in the wire right at the battery. Every time I have hooked my depth finder up to another circuit (especially trolling motor) I end up with interference when I run both of them at the same time.
In my opinion it us just best to run a dedicated wire.

Keith
To add, I meant go straight to the cranking battery and not the trolling motor battery(s). I think it was bass pro or cabelas that had a deal you could hook to your cranking battery that would allow you to make multiple connections for things such as this so you didnt have several different connections hooked up at the wing nut.