aux battery installation 2011 silverodo 2500 6.0 L.

Discussion in 'GM Electrical Tech' started by jydswampbugy, Mar 27, 2012.

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  1. jydswampbugy

    jydswampbugy New Member

    the owners manual mentions a relay under the aux battery tray. where is it and how is it used in the installation of the second bat.
  2. mfleetwood

    mfleetwood Moderator 1000 Posts 100 Posts

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