Step 1: Gather Materials
Here are the rest of the stuff I needed:
-2 x AA Battery holder (cut the other half since I only need a single AA battery)
Step 2: Assemble
2) Cut 2 slots on the side of the mouse for the slide switch and the USB connector - held them in place with a glue. For the battery holder, I used a double sided adhesive tape.
3) Connect the (-) battery terminal to the muvo dock and the (+) terminal to one end of the switch, the other end of the switch goes to the (+) terminal in the muvo dock.
Step 3: Close the Mouse
Step 4: Test
2) Turn the dock switch on
3) Power up the MP3 player