diff --git a/src/kernel/Makefile.am b/src/kernel/Makefile.am
index 774a66b1eb..d2b8f76720 100644
--- a/src/kernel/Makefile.am
+++ b/src/kernel/Makefile.am
@@ -73,8 +73,7 @@ libpspkernelinclude_HEADERS =	\
 	pspsysclib.h		\
 	pspimpose_driver.h	\
 	pspinit.h		\
-	pspamctrl.h             \
-	pspaudiorouting.h
+	pspamctrl.h
 
 lib_LIBRARIES = libpspkernel.a
 
diff --git a/src/user/Makefile.am b/src/user/Makefile.am
index bac5f39516..3d6b07bd98 100644
--- a/src/user/Makefile.am
+++ b/src/user/Makefile.am
@@ -32,8 +32,11 @@ LOADEXEC_OBJS = LoadExecForUser_0000.o LoadExecForUser_0001.o LoadExecForUser_00
 
 IMPOSE_OBJS = sceImpose_0000.o sceImpose_0001.o sceImpose_0002.o sceImpose_0003.o sceImpose_0004.o sceImpose_0005.o sceImpose_0006.o sceImpose_0007.o sceImpose_0008.o sceImpose_0009.o sceImpose_0010.o sceImpose_0011.o sceImpose_0012.o sceImpose_0013.o sceImpose_0014.o sceImpose_0015.o
 
+AUDIOROUTING_OBJS = sceAudioRouting_0000.o sceAudioRouting_0001.o sceAudioRouting_0002.o sceAudioRouting_0003.o
+
 libpspuserincludedir = @PSPSDK_INCLUDEDIR@
 libpspuserinclude_HEADERS =	\
+	pspaudiorouting.h		\
 	pspiofilemgr.h		\
 	pspiofilemgr_devctl.h	\
 	pspiofilemgr_dirent.h	\
@@ -81,7 +84,8 @@ $(THREADMAN_OBJS) \
 $(UTILS_OBJS) \
 $(INTERRUPT_OBJS) \
 $(LOADEXEC_OBJS) \
-$(IMPOSE_OBJS)
+$(IMPOSE_OBJS) \
+$(AUDIOROUTING_OBJS)
 
 $(IO_OBJS): IoFileMgrForUser.S
 	$(AM_V_CPPAS)$(CPPASCOMPILE) -DF_$* $< -c -o $@
@@ -115,3 +119,6 @@ $(LOADEXEC_OBJS): LoadExecForUser.S
 
 $(IMPOSE_OBJS): sceImpose.S
 	$(AM_V_CPPAS)$(CPPASCOMPILE) -DF_$* $< -c -o $@
+
+$(AUDIOROUTING_OBJS): sceAudioRouting.S
+	$(AM_V_CPPAS)$(CPPASCOMPILE) -DF_$* $< -c -o $@
diff --git a/src/kernel/pspaudiorouting.h b/src/user/pspaudiorouting.h
similarity index 56%
rename from src/kernel/pspaudiorouting.h
rename to src/user/pspaudiorouting.h
index 16891bc426..2297e6e644 100644
--- a/src/kernel/pspaudiorouting.h
+++ b/src/user/pspaudiorouting.h
@@ -11,6 +11,10 @@
 #ifndef __PSPAUDIOROUTING_H__
 #define __PSPAUDIOROUTING_H__
 
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
 /**
  * Set routing mode.
  *
@@ -25,7 +29,25 @@ int sceAudioRoutingSetMode( int mode );
  *
  * @return the current routing mode.
 */
-int sceAudioRoutingGetMode();
+int sceAudioRoutingGetMode(void);
+
+/** Get the current routing volume mode.
+ *
+ * @return The current routing volume mode.
+ */
+int sceAudioRoutingGetVolumeMode(void);
+
+/** Set the routing volume mode.
+ *
+ * @param vol_mode The routing volume to set (`0` or `1`).
+ *
+ * @return `0` on success, `< 0` on error.
+ */
+int sceAudioRoutingSetVolumeMode(int vol_mode);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
 
-#endif
+#endif /* __PSPAUDIOROUTING_H__ */
 
diff --git a/src/user/sceAudioRouting.S b/src/user/sceAudioRouting.S
new file mode 100644
index 0000000000..d218b2177e
--- /dev/null
+++ b/src/user/sceAudioRouting.S
@@ -0,0 +1,19 @@
+	.set noreorder
+
+#include "pspimport.s"
+
+#ifdef F_sceAudioRouting_0000
+	IMPORT_START	"sceAudioRouting",0x40010000
+#endif
+#ifdef F_sceAudioRouting_0001
+	IMPORT_FUNC	"sceAudioRouting",0x28235C56,sceAudioRoutingGetVolumeMode
+#endif
+#ifdef F_sceAudioRouting_0002
+	IMPORT_FUNC	"sceAudioRouting",0x36FD8AA9,sceAudioRoutingSetMode
+#endif
+#ifdef F_sceAudioRouting_0003
+	IMPORT_FUNC	"sceAudioRouting",0x39240E7D,sceAudioRoutingGetMode
+#endif
+#ifdef F_sceAudioRouting_0004
+	IMPORT_FUNC	"sceAudioRouting",0xBB548475,sceAudioRoutingSetVolumeMode
+#endif