Intelligent 4-Camera SwitcherThe VS41 is a universal 4-camera switcher that features four camera inputs (front, left, right side, and rear) and one video output to connect to a factory or aftermarket radio with a video display. The inputs are triggered by driver behavior, with the rear back-up inputs automatically activated when the vehicle is shifted into reverse and side inputs prompted by the turn signals. The VS41 is a perfect complement to the versatile universal mount back-up and side blind spot elimination cameras from EchoMaster. 4-camera input (front, rear, and side cameras) Connects directly to an analog turn-signal circuit with flash eliminating signal buffer for uninterrupted side camera activation Works with OE or aftermarket radio (OE requires interface) Priority override for backup camera signal Provides reverse camera output trigger for aftermarket radios Direct plug-n-play data controlled from select PAC RadioPRO and BCI products