diff --git a/LEGO1/isle.cpp b/LEGO1/isle.cpp
index dc81f0be..ec71d083 100644
--- a/LEGO1/isle.cpp
+++ b/LEGO1/isle.cpp
@@ -1,7 +1,27 @@
 #include "isle.h"
 
-// STUB: LEGO1 0x10030820
+#include "legoomni.h"
+#include "mxnotificationmanager.h"
+
+DECOMP_SIZE_ASSERT(Isle, 0x140);
+
+// FUNCTION: LEGO1 0x10030820
 Isle::Isle()
 {
-	// TODO
+	m_unk0xfc = 0;
+	m_unk0x100 = 0;
+	m_unk0x104 = 0;
+	m_unk0x108 = 0;
+	m_unk0x10c = 0;
+	m_unk0x110 = 0;
+	m_unk0x114 = 0;
+	m_unk0x118 = 0;
+	m_unk0x11c = 0;
+	m_unk0x120 = 0;
+	m_unk0x124 = 0;
+	m_unk0x128 = 0;
+	m_unk0xf8 = 0;
+	m_unk0x13c = 0;
+
+	NotificationManager()->Register(this);
 }
diff --git a/LEGO1/isle.h b/LEGO1/isle.h
index 16989416..b714ea19 100644
--- a/LEGO1/isle.h
+++ b/LEGO1/isle.h
@@ -2,6 +2,7 @@
 #define ISLE_H
 
 #include "legoworld.h"
+#include "radio.h"
 
 // VTABLE: LEGO1 0x100d6fb8
 // SIZE 0x140
@@ -25,8 +26,21 @@ class Isle : public LegoWorld {
 	inline void SetUnknown13c(MxU32 p_unk0x13c) { m_unk0x13c = p_unk0x13c; }
 
 protected:
-	undefined m_unk0xf8[0x44]; // 0xf8
-	MxU32 m_unk0x13c;          // 0x13c
+	undefined4 m_unk0xf8;  // 0xf8
+	undefined4 m_unk0xfc;  // 0xfc
+	undefined4 m_unk0x100; // 0x100
+	undefined4 m_unk0x104; // 0x104
+	undefined4 m_unk0x108; // 0x108
+	undefined4 m_unk0x10c; // 0x10c
+	undefined4 m_unk0x110; // 0x110
+	undefined4 m_unk0x114; // 0x114
+	undefined4 m_unk0x118; // 0x118
+	undefined4 m_unk0x11c; // 0x11c
+	undefined4 m_unk0x120; // 0x120
+	undefined4 m_unk0x124; // 0x124
+	undefined4 m_unk0x128; // 0x128
+	Radio m_radio;         // 0x12c
+	MxU32 m_unk0x13c;      // 0x13c
 };
 
 #endif // ISLE_H
diff --git a/LEGO1/radio.cpp b/LEGO1/radio.cpp
index e2c8e82d..f1befefd 100644
--- a/LEGO1/radio.cpp
+++ b/LEGO1/radio.cpp
@@ -1,7 +1,36 @@
 #include "radio.h"
 
+#include "legocontrolmanager.h"
+#include "legogamestate.h"
+#include "legoomni.h"
+#include "mxnotificationmanager.h"
+
+DECOMP_SIZE_ASSERT(Radio, 0x10);
+
+// FUNCTION: LEGO1 0x1002c850
+Radio::Radio()
+{
+	NotificationManager()->Register(this);
+	ControlManager()->Register(this);
+
+	m_unk0xc = TRUE;
+	CreateRadioState();
+}
+
 // STUB: LEGO1 0x1002c990
 Radio::~Radio()
 {
 	// TODO
 }
+
+// FUNCTION: LEGO1 0x1002cde0
+void Radio::CreateRadioState()
+{
+	LegoGameState* gameState = GameState();
+	RadioState* state = (RadioState*) gameState->GetState("RadioState");
+	if (state == NULL) {
+		state = (RadioState*) gameState->CreateState("RadioState");
+	}
+
+	m_state = state;
+}
diff --git a/LEGO1/radio.h b/LEGO1/radio.h
index 3476d89b..8d454483 100644
--- a/LEGO1/radio.h
+++ b/LEGO1/radio.h
@@ -2,10 +2,12 @@
 #define RADIO_H
 
 #include "mxcore.h"
+#include "radiostate.h"
 
 // VTABLE: LEGO1 0x100d6d10
 class Radio : public MxCore {
 public:
+	Radio();
 	virtual ~Radio() override;
 
 	// FUNCTION: LEGO1 0x1002c8e0
@@ -20,6 +22,12 @@ class Radio : public MxCore {
 	{
 		return !strcmp(p_name, Radio::ClassName()) || MxCore::IsA(p_name);
 	}
+
+private:
+	RadioState* m_state; // 0x08
+	MxBool m_unk0xc;     // 0x0c
+
+	void CreateRadioState();
 };
 
 #endif // RADIO_H