Replace 12V Wire

[carlager]

We have bought a new VHF and need to replace the existing 12v wire.

Tips on how to open the contacts are welcome

[Lake-Effect]

Originally Posted by carlager

We have bought a new VHF and need to replace the existing 12v wire.

Why do you need to replace the existing 12v wire? Can't you just splice a connector to it for the new VHF radio? Your wiring looks fairly new, so the existing should be just fine, I would think.

[wingless]

Gotta love how none of those wires are labelled...

[carlager]

Originally Posted by Lake-Effect

Why do you need to replace the existing 12v wire? Can't you just splice a connector to it for the new VHF radio? Your wiring looks fairly new, so the existing should be just fine, I would think.

The new wires are thicker

[Spot]

Turn off the power before servicing.
Blue ones look like loosen the screw.
Gray ones may be poke something into the slot.*
Is there a manufacturer's name and part number on any of the plastics?
What sort of boat? Factory wiring or ???

*hard to tell not being there. That is where I google the part# to get the instructions.

[Lake-Effect]

Originally Posted by carlager

The new wires are thicker

What's the gauge of the old wire, and what's the new gauge? The new wire might not really matter, if the old wire is of sufficient gauge. VHF power requirements haven't changed.

Anyway, to replace the wire you need to trace the old one back to the panel or junction; you'll probably find that the VHF positive is on a screw terminal, and the negative is on a bus bar or that monster blue terminal block. Some of those gray terminals look like they have some sort of push tab to release the wire.


Make/model/year of the boat would help.

[smac999]

stick small screwdriver into retangle hole facing right photo. push / hold it sideways to open internall connector..

you'll either get it open or break it while learning.

[carlager]

Spoke to a guy in ICOM. He assured that I can use the same wires as on my ICOM m411.

Thank you to all of you for your tips