We do not have any type of photo available that I can offer, but you should be able to mount the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 just to the side (on the left or right, your choice) of where the arms protrude on the grille of your 2003 VW Beetle. view full answer...
We have replacement tie-down straps for Thule cargo boxes that may work for your Sears X-cargo roof box.
They are part # 10169. These straps measure 3/4 inches wide and 115 inches long. These are designed to loop through the slots in the cargo boxes to secure your cargo inside your carrier.
I have also linked you to our product page for cargo tie-downs you can check out. view full answer...
Deka jacketed 6-wire cable, part # DW04906-1, is sold by the foot. On the product page in the box labled quantity you will want to type in 20 for 20 feet and you will be good to go. view full answer...