This is a plug-and-play kit for use with an Odyssey RB3. It allows you to extract speaker signals via a plug-and-play connection to the inter-navi audio amplifier located under the passenger seat. You can then connect RCA cables from a high/low converter to an amplifier for a subwoofer, etc. This is a self-made product. It was working without any issues when removed. No claims and no returns, please.