diff --git a/backpack-organization/main-box.scad b/backpack-organization/main-box.scad
index c85963a..c64e8bc 100644
--- a/backpack-organization/main-box.scad
+++ b/backpack-organization/main-box.scad
@@ -5,7 +5,7 @@ $fn=128;
 outerWall=4;
 innerWall=2;
 layerClearance = 0.5;
-verStr="v4";
+verStr="v5";
 font="Montserrat";
 
 // as a convention, outer dimensions refer to measurements from outside wall to
@@ -140,11 +140,11 @@ module audioTray1() {
   difference() {
     audioTrayBlank(s = audioTraySide, h = 15);
 
-    translate([(audioTrayIS - 52)/2, innerWall, innerWall])
+    translate([2.5, innerWall, innerWall])
     union() {
 
       for (i = [0, 1]) {
-        translate([i*(14), i*60, 0])
+        translate([i*(11), i*60, 0])
         mirror([0, i, 0])
         union() {
           translate([6.5, 0, 6])
@@ -163,30 +163,40 @@ module audioTray1() {
             sphere(d=14);
         }
 
-        translate([28.5 + i*(14), i*60, 0])
+        translate([22 + i*(10), i*60, 0])
         mirror([0, i, 0])
         translate([0, 6, 0])
         union() {
           translate([6, 0, 7])
             rotate([-90, 0, 0]) cylinder(d=12, h=16);
-          translate([0, 0, 6]) cube([12, 16, audioTrayIH]);
+          translate([0, 0, 7]) cube([12, 16, audioTrayIH]);
 
           translate([6, 15.5, 7])
             rotate([-90, 0, 0]) cylinder(d=7, h=32.5);
-          translate([2.5, 15.5, 6]) cube([7, 32.5, audioTrayIH]);
+          translate([2.5, 15.5, 7]) cube([7, 32.5, audioTrayIH]);
 
           translate([6, 36, 4])
             rotate([-90, 0, 0]) cylinder(d=7, h=12);
-          translate([2.5, 36, 3.5]) cube([7, 12, audioTrayIH]);
+          translate([2.5, 36, 4]) cube([7, 12, audioTrayIH]);
 
           translate([6, 43, 11])
             sphere(d=13);
         }
       }
+
+        translate([audioTrayIS - 14, 8, 0])
+        union() {
+          translate([6, 0, 6.5]) rotate([-90, 0, 0]) cylinder(d=12, h=40);
+          translate([0, 0, 6.5]) cube([12, 40, audioTrayIH]);
+
+          translate([6, 26, 5]) rotate([-90, 0, 0]) cylinder(d=12, h=14);
+          translate([0, 26, 5]) cube([12, 14, audioTrayIH]);
+        }
+
     }
 
     // Show Cross-section
-    //translate([-2, -1, -1]) cube([audioTraySide + 4, 10, audioTrayHeight + 4]);
+    // translate([-2, -1, -1]) cube([audioTraySide + 4, 20, audioTrayHeight + 4]);
   }
 }