What's the biggest Radio unit size we can squeeze into the double , need help with measurements; any help with knowledge of radio spec Options

[chacha]

for those out there who specialize in audio or know many things about audio please help. we have talked about the radio and units on this forum before, but has anyone got an idea of the biggest size radio unit such as a double din deck we can fit in to the radio trim which will flush out nicely? what's the biggest in measurement in size WxHxD we can have.

pic here is just an example:





will a unit size of:

8in (width) * 4in (height) * 6.3 in (depth)

fit or is it too big in the height or length or depth


and please post picture if you can thanks