connection with only ground, switch 12v+

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spielnicht

Member - Posts: 3

Joined: July 11, 2007

Location: United States

Posted: July 11, 2007 at 12:02 PM / IP Logged

I have a portable GPS nav unit that can be hardwired instead of using a cigarette lighter. For power, it has three wires, Ground, Permanent 12V+, and Switch 12V+. I'm planning on tapping into the three wires of the stock radio for power.

Hypothatically, if I did not want to go that route, and just wanted to tap into the cigarette lighter which has only Ground an Switch 12V+. How do I go about this?

Thanks in advance.

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KarTuneMan

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Joined: December 14, 2004

Location: Isle Of Man

Posted: July 11, 2007 at 1:05 PM / IP Logged

You could tie together on your GPS, the constant and switched?

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pendulum

Copper - Posts: 56

Joined: January 02, 2006

Location: United States

Posted: July 12, 2007 at 2:31 AM / IP Logged

If you do as KarTune suggested, then your GPS will not turn itself off. You would ned to pull a fuse or cut a wire. I would run the grounbd to a good clean ground, then use the ignition harness. Or, use your radios constant 12v and Remote turn on. I have blown fuses and had things just not turn on when tapped into the switched 12v on a head unit. You could also use your HU's switched 12v to power a relay, which would then activate the GPS. Easiest would probably be #2

1999 Toyota Camry

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Pioneer DEH-P3700MP

Lightning Audio Strike S4.15.VC2

Lightning Audio Strike S4.500.1

Majestic 6.5"

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connection with only ground, switch 12v+

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