diff --git a/src/sound/SI2.cpp b/src/sound/SI2.cpp
index ca0673e..e710e36 100644
--- a/src/sound/SI2.cpp
+++ b/src/sound/SI2.cpp
@@ -3,9 +3,11 @@
 #include "sound/CVarHandlers.hpp"
 #include "sound/SESound.hpp"
 #include "sound/SOUNDKITDEF.hpp"
+#include "sound/SOUNDKITLOOKUP.hpp"
 #include "ui/FrameScript.hpp"
 
 TSGrowableArray<SOUNDKITDEF*> SI2::s_SoundKitDefs;
+TSHashTable<SOUNDKITLOOKUP, HASHKEY_CONSTSTRI> SI2::s_SoundKitLookupTable;
 
 int32_t SI2::Init(int32_t a1) {
     // TODO
@@ -108,7 +110,7 @@ void SI2::InitSoundKitDefs() {
     for (uint32_t i = 0; i < g_soundEntriesDB.GetNumRecords(); i++) {
         auto soundEntriesRec = g_soundEntriesDB.GetRecordByIndex(i);
 
-        // Sound kit definition
+        // Populate sound kit definitions
 
         auto soundKitDef = STORM_NEW(SOUNDKITDEF);
 
@@ -145,6 +147,8 @@ void SI2::InitSoundKitDefs() {
             soundKitDef->fileCount++;
         }
 
+        // Copy relevant record fields
+
         soundKitDef->flags = soundEntriesRec->m_flags;
         soundKitDef->name = soundEntriesRec->m_name;
         soundKitDef->minDistance = soundEntriesRec->m_minDistance;
@@ -160,9 +164,15 @@ void SI2::InitSoundKitDefs() {
 
         SI2::s_SoundKitDefs[soundEntriesRec->GetID()] = soundKitDef;
 
-        // Sound kit lookup
+        // Populate sound kit lookups
 
-        // TODO SOUNDKITLOOKUP
+        auto soundKitLookup = SI2::s_SoundKitLookupTable.Ptr(soundEntriesRec->m_name);
+
+        if (!soundKitLookup) {
+            soundKitLookup = SI2::s_SoundKitLookupTable.New(soundEntriesRec->m_name, 0, 0x0);
+        }
+
+        soundKitLookup->ID = soundEntriesRec->GetID();
     }
 }
 
diff --git a/src/sound/SI2.hpp b/src/sound/SI2.hpp
index 1b6fd4a..b315979 100644
--- a/src/sound/SI2.hpp
+++ b/src/sound/SI2.hpp
@@ -1,10 +1,13 @@
 #ifndef SOUND_SI2_HPP
 #define SOUND_SI2_HPP
 
+#include "SOUNDKITLOOKUP.hpp"
 #include "sound/SI2Script.hpp"
+#include "storm/hash/Hashkey.hpp"
+#include "storm/hash/TSHashTable.hpp"
 #include "ui/Types.hpp"
-#include <storm/Array.hpp>
 #include <cstdint>
+#include <storm/Array.hpp>
 
 class SOUNDKITDEF;
 
@@ -13,6 +16,7 @@ class SI2 {
         // Static variables
         static FrameScript_Method s_ScriptFunctions[NUM_SCRIPT_FUNCTIONS_SI2];
         static TSGrowableArray<SOUNDKITDEF*> s_SoundKitDefs;
+        static TSHashTable<SOUNDKITLOOKUP, HASHKEY_CONSTSTRI> s_SoundKitLookupTable;
 
         // Static functions
         static int32_t Init(int32_t a1);