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#11593108 - 05/09/16 08:46 PM Splicing power wires for fish finders
joho5 Online   content
Extreme Angler

Registered: 07/03/08
Posts: 2993
Loc: Abbott, TX
Can I splice off my console fish finder power wire for the bow fish finder?

It's a hds 8 at console and a 5 at bow.

Same fuse size?

#11593399 - 05/09/16 10:30 PM Re: Splicing power wires for fish finders [Re: joho5]
Bobby Milam Online   content
TFF Team Angler

Registered: 07/13/14
Posts: 3450
Loc: Arlington
I'd run straight to the battery. Depending how long your boat is, you may need bigger wire to have 12v to the front. Last time I wired mine, I used the same wire size and up front only showed 11.5v.

#11598361 - 05/11/16 10:32 PM Re: Splicing power wires for fish finders [Re: joho5]
DAN-O Offline
Extreme Angler

Registered: 02/21/04
Posts: 2651
No. I ran into that issue. Had to run a direct line for unit to perform.

#11599063 - 05/12/16 10:57 AM Re: Splicing power wires for fish finders [Re: joho5]
Bob Landry Online   content
Extreme Angler

Registered: 08/10/11
Posts: 2776
Loc: Austin, Tx
I guess I'm lucky. I have a switch from my main panel that feeds a sub-panel for all of the electronics. The sub panel has fused outputs for VHF, 2 fishfinders, stereo, and the Humminbird ethernet hub. Everything up to the subpanel is fed with large wire and I have no problems with any of it. The biggest problems with electronics are caused by either dirty connections and wire used that is too small and causing a voltage drop. If the wire is sized correctly and all connections are clean, you should not have issues with low voltage.
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