My 2nd Gen Prius aux is not working. It has an aux port, but no DISC/AUX button – just a DISC button. I bought the car secondhand and I'm wondering if the stereo system has been replaced and does not even have aux capability. Otherwise, I have tried everything, checking the connections, wiggling everything, even doing some soldering: Aux audio input fault on Gen II Prius - A Cheap Repair that works (Part 86190-53010) | PriusChat Any suggestions?
