[EDIT] 06/06/23 I just wanted to start this thread to maybe get some ideas on how to pull this off and maybe get some help. My goal is to have a 2 camera setup for rear and front view anytime with a push button switch. I will be using the IPA (Intelligent Park Assist) button for the video switching. I have the IPA button now and here is what I want it to do. It is a momentary switch... 1. Push - Rear camera 2. Push - Front camera 3. Push - Off normal operation Pinouts are 1. NA 2. Switch LED Voltage 3. Switch + 4. Rheostat Ground 5. Rheostat Voltage 6. Switch - 7. Switch LED Ground 8. NA If I could find a switcher to do what I want I would just hack it but I'm unable to find one. I have forgotten most of my high school electronics classes and I would like some help designing the circuits for this project. I would also need some good suggestions on a wide angel camera like the one thats already on the Prius but not have the reverse image. Maybe there is a way to bypass the reverse encoder on the OEM camera? I would also need some info on how to route the wiring through the firewall and into the dash.