Ok so here it is I’m stumped, pulled out old unit (some functions wasn’t working) installing a new stereo and it all works until I plug in the antenna and the stereo shuts off. Of course with out the antenna no stations so basically the BT and AUX in but no stations without antenna. Never seen this before read another post about the exact opposite. Tried extra grounds but still shuts off when I plug in antenna. ( even bought new antenna and lead.