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  #1  
Old 01-18-2019, 11:54 PM
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lukej lukej is offline
 
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Default whats the difference between garmin GMC 305 and GMC 507
Whats the difference between garmin GMC 305 and GMC 507 besides the heading knob and the altitude knob and the track button and YD button??
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Old 01-19-2019, 07:30 PM
RV10Man RV10Man is offline
 
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The wiring harness was already made up by Stein for the 9A project that I bought. It has the plug for the GMC 305. Is the GMC 507 a "direct replacement" for the 305 without any mods to the plug?
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Old 01-19-2019, 08:39 PM
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It?s a different physical size, but the GMC307 would be a direct replacement for the GMC305. No sense in going with a GMC507 over a GMC307 if you are already wired for a GMC305/7.
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Old 01-19-2019, 08:41 PM
PNLBLDR PNLBLDR is online now
 
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Default Different
The wiring is not the same. Also the physical mounting and hole cut are not the same. Both of these would not be super tough to modify though.
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Old 01-20-2019, 04:54 AM
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Ok thanks guys for the inputs..
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Old 01-20-2019, 05:50 AM
RV10Man RV10Man is offline
 
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Thanks guys.
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  #7  
Old 01-20-2019, 05:54 AM
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Ed_Wischmeyer Ed_Wischmeyer is offline
 
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The 507 speaks CANbus, the other two don?t. I don?t know what other differences there might be.
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Old 01-20-2019, 09:45 AM
MConner MConner is offline
 
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According g to the G3 Xperts, ?The 507 is NOT compatible with the the non-touch G3x.?
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