Yep people that don't know what they are doing can cause big problem which sounds like what has happened. I would remove the stereo and check out what was done so we can put it back. I can send all the wiring diagrams we need but have no idea what to send until we look at what happened please upload pictures so I can see.
Please let us know what you find.
Tuesday, March 20th, 2018 AT 4:45 PM