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  1. #1
    Jr. Apprentice
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    Default light wiring question

    Working on a 2010 Silverado. I am putting a set of 55 watt lights under the rear bumper for extra vision when backing at night. I know the stock wiring isn't really meant to handle this type of load for any appreciable amount of time. Being as I usually only have it in reverse for a couple minutes at a time, can I just tap into the existing wire for power ?? What says the braintrust ???
    The grave is not something that should be approached sedately in a well preserved body, but rather, slid into sideways, while yelling "Holy crap, what a ride !!!!!"

  2. #2

    Default

    You should use a relay to give power to the lights. Have the reverse wire signal the relay, which you will need to provide with aux power, to turn on the lights you install.

    1996 Chevy Tahoe LT 5.7L V8 4X4 205,000+ miles. Built proudly at Janesville Assembly in Janesville, Wisconsin
    Basic mods: Lights all over, bunch of electrical work, and a couple cooling mods.

    Check out my other mods in My Garage: http://www.gmtruckclub.com/forum/sho...t-Tahoe-4-Door

  3. #3
    Jr. Apprentice
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    Default

    That's easy enough. Thank you.

  4. #4

    Default

    Tapping power from the existing harness for the lights is asking to melt the whole rear harness.
    As Conlan said just use a relay and run a new power wire from the battery.
    Dont forget to put an inline fuse near the battery.

  5. #5

    Default

    @ArtO, the safer way is to use the trailer wiring. Use a 7 pin plug, or splice into the lead behind the connector.

    I think it is the middle pin of the connector.
    Ray

    '09 Avalanche LTZ - Black
    '05 Envoy XL (sold)

  6. #6
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    Enkeiavalanche's Avatar
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    Default

    I know with the Whitenight System it has a relay in the unit and with the new Zxe's I Love it Backing up... After being on the truck for 5 years no problems..Click image for larger version. 

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ID:	55716And it plugs into the factory harness
    08 Z71 Avalanche Mods to date: K&N CAI,Hellwig Swaybars and End Links, Corsa Sport Exhaust, Superchips Programer,IPCW LOF & 3rd brake light and tails, AMI Gas door,Show Hooks and Door locks, Enkei Wheels, with Pirelli tires, StreetScene Bowties, Grant Steering wheel,Muth signal mirrors,SSBC Big Brake kit,Huskyliner Mug gards,Floor mats and Hood shield, McGard Lug nuts and locks, Bedrug, Cervini's Ram Air hood,35watt HID Fog lights, Sylvania bulbs all around ZXE's Highs and Lows, WhiteNight Back up lights,Sirius and HD Radio, SnugTop sitting on deck now Got a Softopper on now,Tempress Boat Hatches.... New Bilstein shocks are on... New Mods coming soon..... X

  7. #7
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    Default

    Quote Originally Posted by RayVoy View Post
    @ArtO, the safer way is to use the trailer wiring. Use a 7 pin plug, or splice into the lead behind the connector.

    I think it is the middle pin of the connector.
    I ended up wiring them through the trailer lights. They work great. Thanks to all.

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