diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..e9ee930b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,6 @@
+[submodule "MSS54-XDFs"]
+	path = MSS54-XDFs
+	url = https://github.com/saildot4k/MSS54-XDFs.git
+[submodule "BMW-6HPxx-XDF"]
+	path = BMW-6HPxx-XDF
+	url = https://github.com/bellium/BMW-6HPxx-XDF.git
diff --git a/BMW-6HPxx-XDF b/BMW-6HPxx-XDF
new file mode 160000
index 00000000..b9c854f1
--- /dev/null
+++ b/BMW-6HPxx-XDF
@@ -0,0 +1 @@
+Subproject commit b9c854f104e054ff6e82731afe2410220753d20d
diff --git a/MSS54-XDFs b/MSS54-XDFs
new file mode 160000
index 00000000..65ba5e19
--- /dev/null
+++ b/MSS54-XDFs
@@ -0,0 +1 @@
+Subproject commit 65ba5e19b6f32e695a23a42bce7713d80c2e0efc
diff --git a/MSSS54-XDFs b/MSSS54-XDFs
new file mode 160000
index 00000000..65ba5e19
--- /dev/null
+++ b/MSSS54-XDFs
@@ -0,0 +1 @@
+Subproject commit 65ba5e19b6f32e695a23a42bce7713d80c2e0efc