Bluetooth mod - Looking for help with sleep mode power down

[LDigital]

I am currently working on bluetooth modding my new 3ds XL. Sourcing 3-5v of power is fine, but most common spots the module will continue to leech power and stay awake even in sleep mode. Does anyone have a schematic or even better, know a pad somewhere that could be used as power but goes to sleep when unit is in sleep mode?

I was thinking there must be something suitable linked to each screen that is activated or deactivated based on status, but I am unsure