diff --git a/cable_passage/cable_passage_top.scad b/cable_passage/cable_passage_top.scad
new file mode 100644
index 0000000..5880083
--- /dev/null
+++ b/cable_passage/cable_passage_top.scad
@@ -0,0 +1,25 @@
+$fn=50;
+h=20;
+d=100;
+t=2;
+d_pg9=15.2 + 0.3;
+d_pg9_spacing=d_pg9+10;
+
+difference() {
+  // Base cylinder
+  difference() {
+    $fn=300;
+    cylinder(h=h, r=d/2, center=true);
+    translate([0, 0, -t])
+    cylinder(h=h, r=d/2-t, center=true);
+  }
+  // Bore holes for PG-9
+  translate([0, 0, h/2])
+  for (y=[-1:1:1])
+  for (x=[-1:1:1])
+  {
+    if ( !((x == -1) && (y == 0)) && !((x == 1) && (y == 0)) )
+    translate([x*d_pg9_spacing, y*d_pg9_spacing, 0])
+    cylinder(h=h, r=d_pg9/2, center=true);
+  }
+}