Can the external speaker be used as a “loud speaker” on the standard horizon GX1300?
johnp34 Seaman Apprentice Joined Jul 11, 2007 Messages 30 Oct 8, 2018 #1 Can the external speaker be used as a “loud speaker” on the standard horizon GX1300?
JimS123 Fleet Admiral Joined Jul 27, 2007 Messages 8,247 Oct 11, 2018 #2 Its the MLS-300 option. Look at page 7 of the Owner's Manual.
