Help on building a wii remote

I got the back side using a netwrksrf but i cant figure out how to place the B button or the back lid where the batteries are, the way i made the button originally was projecting a curve on it and extruding it but i dont like how it came out.

wii remote model 2.0.3dm (6.5 MB)

Hi, for starter run the SystemInfo command, otherwise we can not help.
Can you show with some sketch what you need in specific? what is the “B” button?