I was only aware of Graf's colourful Fw 190 A/U7, it has different type of open inlets, and although sometimes identified as an A-5, it may well be A-4 looking on one known to me blurry photo (from pwm.org.pl)
http://lolas.pl/pablo/mayer/oneua7.jpg
Well documented (and in similar paint style) Graf's Fw 190 A-5 does not have the inlets and is plain A-5.
regards,
Pawel