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Boost Auto mirrors

Discussion in 'General Tundra Discussion' started by Catmann1972, Mar 27, 2021.

  1. Mar 27, 2021 at 11:43 AM
    #1
    Catmann1972

    Catmann1972 [OP] New Member

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    Hello Everyone, I just installed the Boost Auto mirrors on my 2020 Tundra. I am trying to wire in the flood light on these mirrors. Boost Auto suggest I wire them to the reverse wire on the passenger side kick panel. However, i do not want to use the flood light as a reverse light. I want to use the flood light as an interior light. So, when i unlock the truck the flood lights come on and when I start the truck the flood lights turn off. I tried wiring the flood light to the interior light on the drivers side interior light, but that didn't work. Does anyone know what wire to use for the interior light.

    Thanks
     
  2. Mar 27, 2021 at 11:57 AM
    #2
    RobertD

    RobertD ASCM#4 "I call it Vera" ~Jayne Cobb

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    You should be able to tie into the driver foot well light. That's what I did for my step lights I installed. They come on when I unlock but they turn off when I start the truck. If that's what you tried to do but it didn't work, try switching which wires you tied into. Maybe have positive/negative reversed?

    20201018_190322.jpg
     
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  3. Mar 27, 2021 at 12:07 PM
    #3
    Catmann1972

    Catmann1972 [OP] New Member

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    I actually did try that. The blue wire is B+ and the Brown wire is B-. When wired to the blue wire the flood light stays on and will not turn off at all. When i wire it to the brown wire the flood light will turn on when i lock the truck but not when I unlock the truck. I figured that would be fine to, I just have to hit the lock button and then unlock and the flood light Turns on when i enter the truck. However when I start the truck the flood light does not turn off. If I close the truck doors and lock the truck the flood light turns on and stays on. Very odd. Maybe I am not waiting long enough for the flood light to go out. Do you remember what wire you used. These flood lights are a 1 wire set up.
     
  4. Mar 27, 2021 at 12:16 PM
    #4
    RobertD

    RobertD ASCM#4 "I call it Vera" ~Jayne Cobb

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  5. Mar 27, 2021 at 12:21 PM
    #5
    Catmann1972

    Catmann1972 [OP] New Member

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    Thank You Sir :thumbsup:
     
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  6. Mar 27, 2021 at 2:59 PM
    #6
    BlueRibbon4x4

    BlueRibbon4x4 Let’s color match it

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    If the lights you have are a 1 wire setup, they’re using the negative from the existing harness. The flood light needs to use both the positive and negative from the interior light for it to work properly. If there’s any way to tap into the negative that the light in the mirror is using, you would need to do that and connect it to the brown negative interior light wire, while disconnecting the negative the light in the mirror is using from the factory, and allowing the rest of the mirror to use the factory ground so the other electrical works in the mirror. I can answer any more questions if that wasn’t clear enough.
     
  7. Mar 27, 2021 at 3:11 PM
    #7
    cctxquicksand

    cctxquicksand IG - TRDistheWrd

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    Check out @RainMan_PNW build thread as well. He did some pretty trick stuff with these mirrors
     
  8. Mar 27, 2021 at 3:20 PM
    #8
    RainMan_PNW

    RainMan_PNW SSEM #82 RGBA #4 “That Guy”

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    Check the build link in my signature.
    Geno’s correct. At least on my Boost Auto mirrors, they only had one wire for the reverse because they are indeed using the common ground that everything else in the mirror uses. I opted to just run them to a dedicated switch, but that won’t give you “puddle light” function because the footwell light runs through the ECU and a relay for the two wires.
     
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  9. Mar 27, 2021 at 6:17 PM
    #9
    Catmann1972

    Catmann1972 [OP] New Member

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    Thanks for all the reply's guys. This is making more sense now. I kinda figured the Flood light needed both the B- and B+ to operate in the manor I want them to. Seeing that the flood lights did light up when wired to either the B- or B+. They should only have worked with either one of the wires, which i call a switched wire.
     
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  10. Mar 31, 2021 at 11:02 AM
    #10
    Catmann1972

    Catmann1972 [OP] New Member

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    UPDATE: I contacted Boost Auto in regards to the Flood light on there mirrors. They stated that there floods lights are intended to be used as a reverse light, thus connecting the 1 wire from the mirror to the reverse wire located in the passenger side kick panel. They did tell me however that the 1 wire from the mirror is a switched B+. I thought this should be easy enough to accomplish. Recap - I wanted the flood lights on the mirror to turn on when the interior lights turned on, this means the flood light would turn on when I unlock the truck. Here is how a achieved my goal - I purchased a 12V automotive relay - I used the 2 wires from the interior light located under the steering wheel. I connected these 2 wires (Blue = B+ constant B+) (Brown = B- Switched B-) to the coil side of the relay (85 & 86 polarity is not important). The brown wire in our Tundra's is a switched B-. This means when the interior light turns on the B- wire switches to Battery Negative, which in turn activates the 12vdc relay. On the contact side of the relay I used terminal 30 and connected a wire from the cargo light fuse (this is constant B+) using a Mini fuse holder kit. The kit comes with a 5 amp fuse. On the switch side of the contact terminal (87) i connected the wires from the mirror. Now when the interior / cargo light turns on the relay activates thus turning on the flood lights on the mirror. Our trucks DO NOT have a switched B+, they only have a switched B-.

    https://www.amazon.com/gp/product/B082GFVCQ1/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8

    https://www.amazon.com/Nilight-Auto...prefix=12vdc+auto,automotive,159&sr=8-2-spons
     
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