Our new 2552 (2 weeks old), has the pioneer system, with Bluetooth and no navigation. We opted to display the side cameras on the Pioneer system and the 2 backup cameras on the monitor. We had the option of reversing the displays but I'm glad we set it up the way we did. There is some glare on the pioneer screen with the side cameras). Additionally, due to the location of the cameras on the side of the cab, the wider body of the camper box interferes with full camera side visibility. The side mirrors are the best I've ever owned, providing exceptional side visibility. Additionally, the cameras have a slight delay after engaging the turn signals which i found annoying. In hindsight I should have skipped the side cameras. As a side note we purchased the new JBL surround sound system and it's totally awesome, well worth the money if you like music! P.S. We are still ecstatic with the quality and workmanship!!!!!