As far as I know, there is no decent workflow for this.
You can technically import the genitals even with morphs, but best case scenario, cc will recognize them as clothes or accessories.
The textures will be completely different from the body and there will be weird deformations whenever you try to pose it.
I bought both pipeline versions of cc3 and iclone because it looked like the best way to get and animate daz characters inside unity, and got very disappointed with this...
There are several other users that have asked about this in the forum, but the answer is always similar, you can't or if you can it will be back to the issues mentioned before.
I think Reallusion should provide support at least for the official daz anatomical elements, but they have already stated that it won't happen.
There are a couple of base characters for cc3 that have anatomical elements, made by bigboss but their quality doesn't compare to what you get from daz,
and with the new digital human shaders, the genitalia looks broken also on those.
So yeah, tldr this topic is a big mess... but if by any chance you find the magical way to make them work, please share it
Also I believe the root of the problem is that when you import a daz character into cc3 the UVs are changed, and the shaders are applied based on that, and that's why the genitals will never be interpreted
as part of the body unless Reallusion decides to give official support.... I wonder if it could be done with a plugin with the python api for iclone though...