2007 - 2013 (GMT900) Section for all discussion related to the 2007-2013 Chevrolet and GMC trucks.

TP2 option AUX battery

Old Nov 19, 2025 | 2:19 PM
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Edward Andriaccio's Avatar
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Default TP2 option AUX battery



anyone out there have the factory installed option,with all the factory parts?ive recently aquired all the parts but theres one part that doesnt make sense?

Last edited by Edward Andriaccio; Nov 19, 2025 at 4:43 PM.
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Old Nov 19, 2025 | 4:45 PM
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Edward Andriaccio's Avatar
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so if you look...that little plug between 20 and 22 is connection x122...in the wiring diagram.it shows a pigtail connection going back to the underhood fuse panel.this is the part i dont understand
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