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Trailer Brake Controller Installation - 2003 GMC Sierra Video

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How to Install a Trailer Brake Controller on a 2003 GMC Sierra


Today on our 2003 GMC Sierra, we'll be installing the Tekonsha Prodigy P2 brake controller, part number 90885. We'll be using this brake controller in conjunction with the Tekonsha direct fit plug-in wire adapter, part number 3015-P. First we'll need to remove the cover on the manufacturer's junction box. We'll remove the plastic nut and then the cover. Located on the top row, second set of… see more >     


Info for these parts were:

Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Andrew L
Video Edited:
Andrew L
Employee Jeff D
Installed by:
Jeff D
Employee Nicholas E
Test Fit:
Nicholas E
Employee Ryan G
Test Fit:
Ryan G

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