Please help I’m completely confused! A few years ago I installed a SIRS compass in my panel and has been working great. A couple months ago I sent off my right advanced flight 4500 screen to have the SD card reader replaced because it was intermittent. I received it back and reinstalled and now my compass is way off and won’t swing or even react really much at all in flight. So I thought that is strange. I call advanced flight and they say nothing should have changed. So I swapped the left screen to the position of the right and compass still is off so both displays cause the compass to be off. I take the compass out of the panel and it’s correct. I put it back in the panel and its way off again. I take the screen out and the compass is normal. I try a new sirs compass and it reacts the same as my existing compass. So both screens make the compass messed up. This is with no power and screens not even powered up. Powering up does not change a thing. Any ideas? How can the compass work beautifully for 3 years and the only thing I do is have a sd card reader replaced and now the compass and even a replacement compass doesn’t work. I thought maybe my screen got magnetized but both screens do the same. I even checked for steel screws on the screens case but found none. Pictures show what used to be the correct heading before I sent off the screen and what it shows after. The 155 heading pictures are the correct headings. The 245 heading is after the screen repair and reinstall. I did try to swing it again but it won’t. Please help…