Finding the Tingle Tuner (GBA) at Taura Island
When you get to Taura Island, you will find Tingle trapped in a jail cell. Set him free by smashing all the jars in the corner of the room and step on the switch. After a discussion, Tingle will give you the map to Tingle Island and the Tingle Tuner. You can now use your Game Boy Advance to communicate with Tingle.