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Power supply for a GPS speedo #663228
20/09/20 01:52 PM
20/09/20 01:52 PM
Joined: Jul 2007
Posts: 17,805
Suffolk
John V6 Offline OP
Member of the Inner Circle
John V6  Offline OP
Member of the Inner Circle

Joined: Jul 2007
Posts: 17,805
Suffolk
On my Brooklands I need a GPS speedo as the factory fit one undereads by 10% and is not inl line of site.
I started powering from the cigarette lighter but of course that is always on , so one day I will drain the battery.
I discovered the radio USB port for a USB stick is actually powered up with the ignition and live even if the USB port is not selected.
So a simple result.


JohnV6
2006 Indigo Blue Roadster S1
2014 Brooklands Edition Roadster "Brookland's Belle"
Re: Power supply for a GPS speedo [Re: John V6] #663255
20/09/20 04:27 PM
20/09/20 04:27 PM
Joined: Feb 2016
Posts: 3,082
East Harling, Norfolk UK
Richard Wood Online NoMood
Talk Morgan Addict
Richard Wood  Online NoMood
Talk Morgan Addict

Joined: Feb 2016
Posts: 3,082
East Harling, Norfolk UK
If you want a dedicated feed John then a 12 volt fed USB socket could be hooked into the ignition switched light green/white wire on the radio feed loom. This will be available whether radio fitted or not, and also feeds the horns via a 10 amp fuse.


Richard

2018 Roadster - Red/Magnolia - "Morton"
1966 Land Rover series 2a SWB
1960 Velocette Venom
Re: Power supply for a GPS speedo [Re: John V6] #663259
20/09/20 04:31 PM
20/09/20 04:31 PM
Joined: Jul 2007
Posts: 17,805
Suffolk
John V6 Offline OP
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John V6  Offline OP
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Joined: Jul 2007
Posts: 17,805
Suffolk
Richard,
Ill see how B&C get on re the recalibration. Thanks for the idea though.


JohnV6
2006 Indigo Blue Roadster S1
2014 Brooklands Edition Roadster "Brookland's Belle"
Re: Power supply for a GPS speedo [Re: Richard Wood] #663270
20/09/20 05:20 PM
20/09/20 05:20 PM
Joined: Nov 2015
Posts: 2,795
Yorkshire
CooperMan Offline
Talk Morgan Expert
CooperMan  Offline
Talk Morgan Expert

Joined: Nov 2015
Posts: 2,795
Yorkshire
Originally Posted by Richard Wood
If you want a dedicated feed John then a 12 volt fed USB socket could be hooked into the ignition switched light green/white wire on the radio feed loom. This will be available whether radio fitted or not, and also feeds the horns via a 10 amp fuse.

That's what I used, works well & I can leave to TomTom feed plugged in & just forget it


Jon M
Re: Power supply for a GPS speedo [Re: CooperMan] #663282
20/09/20 06:13 PM
20/09/20 06:13 PM
Joined: Aug 2010
Posts: 3,185
Costock, South Nottinghamshire...
Paul F Offline
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Paul F  Offline
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Joined: Aug 2010
Posts: 3,185
Costock, South Nottinghamshire...
Originally Posted by CooperMan
Originally Posted by Richard Wood
If you want a dedicated feed John then a 12 volt fed USB socket could be hooked into the ignition switched light green/white wire on the radio feed loom. This will be available whether radio fitted or not, and also feeds the horns via a 10 amp fuse.

That's what I used, works well & I can leave to TomTom feed plugged in & just forget it


Me too. I bought a radio power cable adaptor off ebay which enabled me to plug into the radio wiring and then connect a USB socket without modifying the car wiring in any way.


Paul
Costock, UK
2014 4/4 Rolls Royce Garnet Red
Disco 4
Teddy - 17h1 Irish Draught cross
Re: Power supply for a GPS speedo [Re: John V6] #663354
21/09/20 10:38 AM
21/09/20 10:38 AM
Joined: May 2007
Posts: 4,323
Reading
A11OGE Offline
Part of the Furniture
A11OGE  Offline
Part of the Furniture

Joined: May 2007
Posts: 4,323
Reading
what type of reader. I was thinking of doing the same, espacilly for kph.

ps you would have enjoyed West Green House yesterday. 220 cars, with 24 Morgans.

Originally Posted by John V6
On my Brooklands I need a GPS speedo as the factory fit one undereads by 10% and is not inl line of site.
I started powering from the cigarette lighter but of course that is always on , so one day I will drain the battery.
I discovered the radio USB port for a USB stick is actually powered up with the ignition and live even if the USB port is not selected.
So a simple result.


Steve A11OGE Red 1989 4/4 4 seater

'A Morgan is for life, not just for Sundays'
Re: Power supply for a GPS speedo [Re: John V6] #663386
21/09/20 01:29 PM
21/09/20 01:29 PM
Joined: Feb 2019
Posts: 2,587
Port Orchard, WA.
LightSpeed Offline
Talk Morgan Expert
LightSpeed  Offline
Talk Morgan Expert

Joined: Feb 2019
Posts: 2,587
Port Orchard, WA.
Are you wanting a GPS unit to use as a speedometer or a specific GPS Speedo?

You could power a gps unit by piggybacking a fuse so you would have dedicated power to it. Just select a circuit that is either on with the ignition or always on and put the fuse in place.


Stephen
2019 M3W leaking oil right off the showroom floor

Re: Power supply for a GPS speedo [Re: John V6] #663416
21/09/20 03:52 PM
21/09/20 03:52 PM
Joined: Jul 2007
Posts: 17,805
Suffolk
John V6 Offline OP
Member of the Inner Circle
John V6  Offline OP
Member of the Inner Circle

Joined: Jul 2007
Posts: 17,805
Suffolk
Lightspeed I didn't want to start altering the electrics & am happy with this solution.

Steve. I bough this of fleabay It has a standard display. I have have it stuck on the dash with sticky pads just above the wheel boss.
GPS speedo


JohnV6
2006 Indigo Blue Roadster S1
2014 Brooklands Edition Roadster "Brookland's Belle"

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