When I turn on my car the screen in my 02 Ls430 will only show the logo and then remain completely blank which would leave me unable to control the temperature and the radio. I own the UL model so the back controls would be cut off if I replaced it with the aftermarket screen. I have already replaced the screen itself and lower control deck and the problem is still still there. How would I solve this problem? At this point I don’t care if I lose the back seat controls it would nice to keep tho.