Hello all, first time sharing anything here but I did however read every post out there on the black screen, USB and radio issue etc.. none of the steps have resolved what I have so looking for any ideas.

my car has initially come with a super x Sterio system which I wanted to remove. In the process of doing so, I may have caused a short circuit somehere which shutdown my screen and now does not start. I tried the battery negative removal, the change out for fuses and the removal the. Insert of fuse, none seems to work. There is something interesting though that even though the fuse is ok ( through test), the media hub and charger don’t work.... I may have short circuited the main but screen? Is that possible but if this is possible, should I not still have charging capability?

any help is appreciated.