

Just buy a standard cable clamp and install it. The thickest cable should be no more than 50-3, otherwise it will be pinched and damage the leather (mine was slightly damaged). I recommend using 50-2. Route the cable along the back of the trunk, down to the electrical connection for the hydraulic column, then along the groove to the bottom of the trunk, where you can simply insert it. This is a non-destructive installation; just use some duct tape.
If you have any questions, please don't hesitate to contact me again.