DBL-R

Hello, I have a 2015 Oliver Legacy Elite with the Jensen TV and the Furrion stereo. When hooked up to shore power, if I operate the TV or the stereo independently, they work fine. However, if I have the stereo on and then turn the TV on, the stereo shuts off completely (as in no power). If I turn the TV off, the stereo comes back on. Any suggestions? Thank you Ron