2018 Dodge Durango The Audiofrog 6×9 speakers were a huge improvement in output and quality. Audiofrog 1″ tweeters were the perfect fit for the sail panels. The rear doors were upgraded with coaxial speakers. Processing and speaker amplification was handled by the JL Audio VXi amplifier. A wooden bridge was fabricated to hold the xD amplifier. Factory mounting spots were used to mount the amplifier bridge. The two amplifiers provide the system with tons of clean power. Setting up the VXi processor was easy with the JL Audio TuN software. We tuned the system to an ear-pleasing curve. Our fabricators went to extra lengths to make sure the enclosure was sturdy. The new enclosure looked great in the hatch of the Durango! Integrating with the factory source unit was easy thanks to the PAC audio interface.