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Old 12-03-2019, 02:39 PM
Admirals Club Admiral's Club Member
Join Date: Mar 2011
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there has been changes over the years so Iím guessing it depends.

the first ghc 10s screens needed 12v and later took power via n2k.

The older systems also have a yellow turn on wire. If your system needs this. Then maybe the 20 wonít work. As Iím not sure the 20 has the yellow remote wire.

If your ghc 10 only has a nmea 2000 cable. Your chances of a 20 wirking would be higher.

if it has a power cable with the yellow wire hooked up. Chances less.