1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Looking for 12V+ Power Lead Under the Hood

Discussion in 'Gen 3 Prius Accessories and Modifications' started by MPSchenck, Sep 25, 2015.

  1. MPSchenck

    MPSchenck Member

    Joined:
    Sep 16, 2015
    46
    62
    0
    Location:
    Cleveland, TN
    Vehicle:
    2015 Prius
    Model:
    Two
    Ok, so I have never installed an HID kit before, but I have just ordered the Morimoto Elite HID System kit form The Retrofit Source.

    I have 2 questions for those that might know.
    1) I included the "optional" Anti-Flicker Capacitor Link, but I'm not sure if I will actually need it? It was $15 so if I end up not needing it there is no great loss.

    2) The instructions for the kit include a few step that makes me pretty nervous. Mostly because of all the HID install videos I've watched on Youtube, none have included these steps as far as I can tell.
    Screen Shot 2015-09-25 at 1.46.25 PM.png Screen Shot 2015-09-25 at 1.46.37 PM.png
    Where's the 12V+ power lead under the hood?

    Any help in this dept would be greatly appreciated.
     
    #1 MPSchenck, Sep 25, 2015
  2. JimboPalmer

    JimboPalmer Tsar of all the Rushers

    Joined:
    Apr 14, 2009
    12,470
    6,871
    2
    Location:
    Greenwood MS USA
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    #2 JimboPalmer, Sep 25, 2015
    fragglestickcar likes this.
  3. MPSchenck

    MPSchenck Member

    Joined:
    Sep 16, 2015
    46
    62
    0
    Location:
    Cleveland, TN
    Vehicle:
    2015 Prius
    Model:
    Two
    Nice! Thank you


    iPhone 6+ ?
     
    #3 MPSchenck, Sep 25, 2015
  4. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,921
    3,143
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    Here's a picture of my engine fuse box. There is a bolt exposed under the cover (with the screwdriver near it) by the heavy gauge white wire in the top center of the picture. You can treat that bolt like the positive terminal of your 12v auxillary battery (always hot).

    [​IMG]

    Or, you can use one of the two open 1/4" push on terminals at the back of the fuse box, Which are much easier to access than the bolt mentioned above. In this pic they are the ones with the heavy gauge red wires connected to them. I have my highbeam DRLs and Foglights running off these terminals.
     
    #4 xliderider, Sep 25, 2015
    Dylan Doxey likes this.
  5. MPSchenck

    MPSchenck Member

    Joined:
    Sep 16, 2015
    46
    62
    0
    Location:
    Cleveland, TN
    Vehicle:
    2015 Prius
    Model:
    Two
    Screen Shot 2015-09-25 at 3.36.59 PM.png This one?

    To use those push on terminals I would have to cut the washer like connectors off and replace with the push ons? I assume I could get the push on things at, say, AutoZone/Advanced/O'Reilly's?
     
    #5 MPSchenck, Sep 25, 2015
  6. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,921
    3,143
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    I can't see your pic on my smartphone. But yes, any autoparts store, or even Walmart automotive section. Just get 1/4 inch push on type crimp on connector for the appropriate wire gauge size. Maybe some heat shrink tubing to put over the connector as well.
     
    #6 xliderider, Sep 25, 2015
  7. MPSchenck

    MPSchenck Member

    Joined:
    Sep 16, 2015
    46
    62
    0
    Location:
    Cleveland, TN
    Vehicle:
    2015 Prius
    Model:
    Two
    Cool, I can do that.

    Anybody know if I actually need that bit? I guess it couldn't hurt to install it either way.
     
    #7 MPSchenck, Sep 25, 2015
  8. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,921
    3,143
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    Yeah, you can put ring terminals under that bolt. Disconnect the 12v auxiliary battery before touching that bolt though.
     
    #8 xliderider, Sep 25, 2015
  9. StarCaller

    StarCaller Senior Member

    Joined:
    Feb 15, 2014
    1,256
    706
    0
    Location:
    Cedar Crest, NM, USA
    Vehicle:
    2014 Prius
    Model:
    Two
    not needed/
    I installed mine just with the harness/
    works perfect//
     
    #9 StarCaller, Sep 26, 2015
  10. ILuvMyPriusToo

    ILuvMyPriusToo Senior Member

    Joined:
    Dec 4, 2014
    778
    514
    0
    Location:
    Outside Philly, PA
    Vehicle:
    2009 Prius
    Model:
    II
    If you use those push-on connections in the fuse box for an accessory, should you include an in-line fuse (since I gather you are connecting directly into a main)?
     
    #10 ILuvMyPriusToo, Sep 26, 2015
  11. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    7,921
    3,143
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    Yes, definitely.
     
    #11 xliderider, Sep 26, 2015
  12. MPSchenck

    MPSchenck Member

    Joined:
    Sep 16, 2015
    46
    62
    0
    Location:
    Cleveland, TN
    Vehicle:
    2015 Prius
    Model:
    Two
    Yes, if you use the included HD Relay harness there is an inline fuse.


    iPhone 6+ ?
     
    #12 MPSchenck, Sep 29, 2015
  13. blake9809

    blake9809 Junior Member

    Joined:
    Mar 21, 2023
    48
    5
    1
    Location:
    Minneapolis, Minnesota
    Vehicle:
    2002 Prius
    Model:
    SE

    hey any update on where you got the 12v positive lead connected to? photos would be excellent. I came across this post and i am also installing a HID kit in my 2002 prius. I have the capacitors and also the wiring harness that is asking for 12v positive lead. I dont think you have to use the wiring harness but its recommended so if i can find a 12v power source under the hood i would like to use it. Let me know how your turned out. thanks
     
    #13 blake9809, Apr 4, 2023
  14. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
    56,675
    39,222
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    This shows the main 12 volt lead at the fuse box:

     
    #14 Mendel Leisk, Apr 5, 2023
    Mr. F likes this.
  15. blake9809

    blake9809 Junior Member

    Joined:
    Mar 21, 2023
    48
    5
    1
    Location:
    Minneapolis, Minnesota
    Vehicle:
    2002 Prius
    Model:
    SE
    I ended up using one of these add-a-circuit fuse tap to get power from a fuse under the hood for the HID harness. Works great, thought i would share.


    [​IMG]
     
    #15 blake9809, Apr 19, 2023
    Montgomery and jzchen like this.
  16. Wums

    Wums New Member

    Joined:
    Nov 28, 2022
    12
    1
    0
    Location:
    Missouri
    Vehicle:
    2010 Prius
    Model:
    N/A
    so im just doing some upgrades to my prius, where do you install the bulbs? next to the main ones there or are these like low riders?
     
    #16 Wums, May 15, 2023
(You must log in or sign up to post here.)