Valenti Sequential 4th Brake Light Install

How to install the Valenti Sequential 4th brake light
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4th brake light link - http://www.ft86speedfactory.com/catalogsearch/result/index/?cat=0&dir=desc&order=created_at&q=valenti+4th+brake+light?utm_source=youtube&utm_medium=social&utm_campaign=valenti-sequential-4th-brake-light-install
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