[drifter]

I had to replace both the radar cable and the am/fm antenna cable.  I attached a strong nylon cord to the cable in the arch, pulled it through to the console, attached the new cable and fed it back through to the arch.  You can feed it either way, your preference.  My boat has 2 access hatches and the 2 cup recessed holder which helped.  it is sort of a pain (it's a boat!) but you can do it.  The connectors were left installed but they fed through alright.