Power for Garmin Chartplotter

Discussion in 'Electronics Q&A' started by Boilermakerjay, Aug 12, 2020.

  1. Boilermakerjay

    Boilermakerjay New Member

    6
    Aug 12, 2020
    Valparaiso, Indiana
    2006 280 Sundancer
    Twin 4.3 with Bravo 3
    Hopefully this is a simple one, I have my chartplotter installed in helm dash but I need to wire the red/black. I want to use one of the accessory buttons but the wires behind the dash coming from a series of buttons are bundled. Is there an easy way to find the red wire or is there an easier way to connect power behind the dash? It does have an inline fuse. Thank you!
     
  2. yobub

    yobub Well-Known Member PLATINUM Sponsor

    541
    Jul 29, 2016
    Chicago
    1998 400 Sundancer
    Cat 3116's
    My accessory switch powers a fuse block that powers the dash electronics. I tap into the fuse block to power new devices.
     
    Steve S likes this.
  3. Boilermakerjay

    Boilermakerjay New Member

    6
    Aug 12, 2020
    Valparaiso, Indiana
    2006 280 Sundancer
    Twin 4.3 with Bravo 3
    Thanks for the reply. I am struggling to see how I tap into the fuse block. I see the indicators but how do I access the block, is there a cover that has to be removed?
     
  4. bobeast

    bobeast Dance the Tide SILVER Sponsor

    Oct 22, 2017
    Isleton, CA
    2002 310DA
    350 MPI w/V-drives
    This is not intended as an insult or condescension so I apologize if it comes off that way.

    A TV repair-man did a service call. When he got to the TV, he looked around a bit, and then slapped the TV on the side. The TV started working just fine. "That'll be $200 bucks, said he". $200??? But all you did was slap the TV!!
    "Right. The service call was only $30. The additional $170, was for knowing where to slap it".

    This is one of those cases where if you have to ask, it is better to have someone install it who has a background in electronics installation. If you do so, watch over their shoulder and ask lots of questions. Once you know where to slap it, it will all seem so easy.
     
  5. yobub

    yobub Well-Known Member PLATINUM Sponsor

    541
    Jul 29, 2016
    Chicago
    1998 400 Sundancer
    Cat 3116's
    It may have a cover. You should be looking at a plastic piece that is either behind the dash or maybe under the dash. It will have one or two rows of flat plastic blade-type fuses, and next to each fuse will either be a metal tab to connect the wiring, or a metal screw. Some fuse blocks are only for the positive wire, while others have a place for positive and a place for negative. If you aren't 100% sure what you are looking at, upload a picture.

    The part with the fuses is positive, and there may be a set of tabs, a set of screws, or sometimes just a single screw post for negative. The positive power wires are frequently red, but might be other colors. The negative wires are frequently black.

    You can screw up your chartplotter if you connect it wrong, so if you aren't completely sure, don't proceed.

    If you have an experienced dock neighbor, they could walk you through it.
     
    Last edited: Aug 13, 2020
    Steve S likes this.
  6. Dabble

    Dabble Member

    77
    May 26, 2020
    Olympia, WA
    1997 330 Sundancer
    2000 230 Bow Rider
    97 - Twin 5.7 Merc V-Drives
    2000 - 5.7 Bravo III
    This is stupid and condescending and stupid. (Yes, it is doubly stupid).

    One of the main reasons for CSR is to learn about our boats. He’s asking for assistance.

    Would you tell your kids/family/friends this doubly stupid story or would you try to help and provide guidance if possible?
     
  7. OllieC

    OllieC Well-Known Member SILVER Sponsor

    Mar 11, 2013
    MinniSoCold
    Sara Belle
    2005 Weekender 215
    Mercruiser 5.0 mpi, Bravo III
    I did this in my WE for LED lights. Check the owners manual. There should be a wiring diagram in the back which will identify the bundled wires color, connected to the accessory switch. You may have to dig around in the bundle. Mine was open (not being used) and had a connector on it.

    You can do what yobub did and add a block to that accessory cable, to add more accessories to it. Keep in mind, and correct me if I'm wrong someone, but that accessory wire should already be fused through the ECM, which is sounds like you may have.
     
  8. bobeast

    bobeast Dance the Tide SILVER Sponsor

    Oct 22, 2017
    Isleton, CA
    2002 310DA
    350 MPI w/V-drives
    It's a judgement call. If they didn't know how to open a fuse block I would probably suggest they "have someone install it who has a background in electronics installation". Sorry you didn't appreciate the anecdote. I'm not nearly as funny as I think I am sometimes.
     
  9. b_arrington

    b_arrington Well-Known Member GOLD Sponsor

    Feb 21, 2007
    Setauket, NY
    2018 Back Cove 34
    Cummins QSB 6.7 480
    Perhaps download the owner's manual and parts manual from the Sea Ray website, under Owners Resources. My manual for the same year boat had very detailed electrical schematics and diagrams for the location of every system and part. This might help you for this and future projects.
     
  10. yobub

    yobub Well-Known Member PLATINUM Sponsor

    541
    Jul 29, 2016
    Chicago
    1998 400 Sundancer
    Cat 3116's
    @Boilermakerjay there is a short article in this month's Boating magazine that explains the basics of fuse blocks and the associated connectors. 2 pages starting on page 38.
     
    Steve S likes this.
  11. Boilermakerjay

    Boilermakerjay New Member

    6
    Aug 12, 2020
    Valparaiso, Indiana
    2006 280 Sundancer
    Twin 4.3 with Bravo 3
    Thank you all, I ended up piggy backing off another accessory red/black wire and it seems to be working fine. Still can't tell where they terminations are for the unused accessory buttons, manuals are unclear. Thanks again!
     

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