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GPS Accessory Switch Wiring

Discussion in 'Technical Stuff' started by mbhenry1955, Jul 9, 2017.

  1. mbhenry1955

    mbhenry1955 Well-Known Member

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    I have a 2250 with the "GPS Accessory switches. 3 switches on the rt side of the dash GPS.  I'm wiring in a amp for the stereo and I want to use one of these switches. I have no power on any of the switches. 


    Does anyone know how to get the power to the switch panel?


    I'm calling my dealer Monday. 


    Thanks
     
  2. BulldogsCadillac

    BulldogsCadillac Just some guy

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    Huh? You are wanting to use one of the switches to do what to the amp?
     
  3. mbhenry1955

    mbhenry1955 Well-Known Member

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    I want to use the switch for battery power to my amp since there is no bus bar or any other place to get power from under the helm. (I'm not splicing wires if I don't have to).


    The battery switch has 2 male spade terminaled wire (red and black) but there isn't any power to them. 


    I have 3 switches in the dash not being used. 
     
    Last edited by a moderator: Jul 9, 2017
  4. SEMPERFI8387

    SEMPERFI8387 Moderator

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    Unless you are talking "amp signal", there is absolutely no way to safely power your amp off a accessory switch. An amp needs a (fused) direct feed from battery for power. 
     
    Last edited by a moderator: Jul 10, 2017
  5. mbhenry1955

    mbhenry1955 Well-Known Member

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    All of my switches and accessory switches have breakers. That's what these switches are used for.


    Adding lights, etc.. Anything that you want switched.


    Each accessory switch has a 12v power lead and a ground coming off of them for add ons!
     
    Last edited by a moderator: Jul 10, 2017
  6. cwag911

    cwag911 Moderator

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    The wire for those switches aren't thick enough. Should be at least a 10 gauge wire and the switches won't handle the amperage draw. We're trying to explain why you shouldn't do it. But it's your boat.
     
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  7. mbhenry1955

    mbhenry1955 Well-Known Member

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    The amp I'm installing doesn't call for high amperage. 


    I can't find any other power supply without splicing wires which I don't want to do. 


    My amp calls for 1 power supply + ground and a separate switched wire to power up when the stereo powers on. 


    Not seeing any other place to pull power from I was going to use the switches. 


    Please tell me where to get the power supply under the helm without pulling wires from the battery. 
     
  8. SEMPERFI8387

    SEMPERFI8387 Moderator

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    Please post spec sheet for your amp. Something doesn't make sense. 
     
  9. mbhenry1955

    mbhenry1955 Well-Known Member

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    The manual states 5 amp draw.


    12v input

    (18).jpeg
     
    Last edited by a moderator: Jul 10, 2017
  10. cwag911

    cwag911 Moderator

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    Curious as to the brand of the amp.
     
  11. mbhenry1955

    mbhenry1955 Well-Known Member

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  12. BulldogsCadillac

    BulldogsCadillac Just some guy

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    I wouldn't be tapping into any power under the helm. That is MY opinion. As stated, you can do whatever you like, but the only wire even remotely an option in my opinion (although I would not do it) is the main line that Bennington runs. Of course if you want to eliminate ground hum, you also should be running a ground all the way to the battery. It is a very small amp so I know it seems like a lot of work, but I wouldn't want to cause any problems with my warranty. 


    The switched power that tells your amp to turn on when the radio does is USUALLY the blue wire from the deck. 
     
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  13. mbhenry1955

    mbhenry1955 Well-Known Member

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    My dealer just told me how "They" run the wiring and to pull 12v off the circuit breaker and that there are several unused grounds to attach to under the helm. 


    I'm going to take another look at it this weekend.


    I'll keep you posted.
     
  14. mbhenry1955

    mbhenry1955 Well-Known Member

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    Latest update, I located all the wires and connectors from all the accessory switches and I connected my amp and all works great. I wired it into the same accessory switch that powers up the radio and gps. That switch had spare wires in the loom to add other accerories.


    The problem that I ran into was that whoever make the wiring looms for Bennington screwed up.


    There is a 4 way flat weather pack connector that's wired wrong (the wire don't line up when connected).


    Thankfully, I have the proper tools (Guys, I did this for a living) to take the connector apart and move the wires to their proper position in the connector so they line up.


    Then all the accessory switch will power up. I'll then move the wires to a different switch so I can power up the amp independently from the main accessory switch.


    I know the pic is blurry, but maybe you'll see what I'm talking about.


    (17).jpeg
     
    Last edited by a moderator: Jul 17, 2017

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