Brother because what you think is an Alpine system is actually a local cheap headunit made by Automate Pakistan, rebadged as alpine, if you look up Alpine A01611AP online you wont find anything. It is rubbish, mine came with only 1 gb ram from the factory and I had to mail toyota countless times for them to replace this piece of crap with another automate piece of crap but with 2 gb ram, but now atleast its usable. As for the brightness, you have to live with this screen which I believe is not even 720p.