New GPSMap, Dash, and Transducer on the 302

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Eric55AMG
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New GPSMap, Dash, and Transducer on the 302

Post by Eric55AMG »

Decided to address a few of the issues I've had with the 302.
Upgraded the tired old GPSMap 520 to a Sonar capable GPSMAP 742xs with the new Airmar P75M Chirp transducer.

Had to create a new Dash to accommodate the 16x9 format of the 742.

The Dash isn't perfect, (I'm probably the only one who will notice) but it's good enough for now. I'm looking at a few other materials / color combinations for long term.

https://buy.garmin.com/en-US/US/p/57547 ... 8-03#specs
http://www.airmar.com/productdescription.html?id=203

Here's a few pics of before, during, and after to oogle over :lol:
Auto_2011_Cobalt_302 2019-03-23 16 56 45.jpg
Auto_2011_Cobalt_302 2019-03-30 19 03 00.jpg
Auto_2011_Cobalt_302 2019-04-15 13 28 18.jpg
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2011 Cobalt 302 W/Twin 8.1 Gi DP
"A Little Chop"
Eric55AMG
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Re: New GPSMap, Dash, and Transducer on the 302

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Auto_2011_Cobalt_302 2019-04-20 22 06 49.jpg
Auto_2011_Cobalt_302 2019-04-20 22 11 30.jpg
Auto_2011_Cobalt_302 2019-04-21 18 04 43.jpg
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2011 Cobalt 302 W/Twin 8.1 Gi DP
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Eric55AMG
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Re: New GPSMap, Dash, and Transducer on the 302

Post by Eric55AMG »

Also took the opportunity to add a second under dash "selector" button and split the wiring so that I could separate the two Tach LCD screens.
This let's me cycle each screen independently to display different engine data.

What I'd like to eventually do is either hook the Garmin into the existing Medallion "engine management" data feed, or setup a separate NMEA2k network to pull in the engine data. Just don't know if that would eliminate the data feeds to the Medallion gauges.

Nice thing about going with the new P75M transducer, I can keep the factory thru hull transducer that feeds water temperature to the dash.
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Re: New GPSMap, Dash, and Transducer on the 302

Post by cmattj »

Wow. Nicely done and huge upgrade. I see you had to move the gauges over slightly as it’s all very proportional now.
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Re: New GPSMap, Dash, and Transducer on the 302

Post by Big Block Power »

I like it. Nice job Eric.
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Re: New GPSMap, Dash, and Transducer on the 302

Post by Bfun220 »

Big Block Power wrote: Sat Apr 27, 2019 6:02 pm I like it. Nice job Eric.
+1
Nice job.
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Re: New GPSMap, Dash, and Transducer on the 302

Post by AsLan7 »

Great pics E55amg....loce your talent brother !
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Re: New GPSMap, Dash, and Transducer on the 302

Post by BigGib »

Looks sharp! Very nice upgrade from stock
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Re: New GPSMap, Dash, and Transducer on the 302

Post by Eric55AMG »

Thanks all 😄
2011 Cobalt 302 W/Twin 8.1 Gi DP
"A Little Chop"
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