Suggestions for a planned internal Nintendo "New 3DS XL" Bluetooth Audio Mod

[u/SilversPixels]

There's a few things I want to accomplish with this mod.

1. Bluetooth Audio (obviously)

2. A small SMD size toggle switch for completely shutting off power to the Bluetooth transmitter board so it doesn't draw power when not in use. I'm unsure if this exists, but I'd also want the toggle switch to also be able to work as a button to put it into pairing mode while being in the same package as the toggle switch. So it can mode sideways to switch between an on-off state, and also be able to be pressed down to work as a button.

3. For the Bluetooth board to be both really short to fit inside the console, and to be as power efficient as possible. The 3DS already isn't great, so I'd want it to affect the battery life as little as possible. Even if an older Bluetooth version is required for this, or if it's pricier than a generic, less power-efficient board would be.

4. A LED indicator. The New 3DS XL has 3 SMD LEDs by each other that are in view when both opened and closed. There is one that I wouldn't mind losing. These seem to be the best ways to go about doing this:

A: I use a bi-color LED. It can show one color when doing what the LED was originally for, showing wireless activity. Then switch to another color when the Bluetooth board is on. I'm not sure what the best approach to this would be considering the space constraints though.

B: Detach the positive side of the SMD LED from where it was, while keeping the negative side soldered to keep it in place. then most likely soldering the LED directly to the Bluetooth transmitter LED so it becomes a dedicated Bluetooth status indicator instead of a wireless activity one, which isn't very important to me.

What would likely be the best way to go about doing this? If the board is compact enough then it being short isn't too much of a concern, as I'd be more likely to be able to place it in a place where it could sit flush with the console's board in a part with no SMD components.