Heya everyone, well my friends driving himself nuts over this project that hes working on and i tried helping him but couldn’t figure a solution, so i figured id ask you guys the experts 
He made this example model http://img214.imageshack.us/img214/158/exampletav.png to show that even though he inserted the meshes and its one model now it looks like he slapped all the parts on, he wants to know how you’d make the ears blend into the head so it looks like one shape rather than leaving it look like a subtool.
I usually leave everything I want to look connected… connected 
you could connect them… Remesh them together then smooth the transition.
It might be possible to Remesh copies of them together, smooth the transition, then project the copied combined mesh onto the originals, I’m not sure how well that would actually work but in theory…