Today on our 2007 Saturn Aura we'll be installing the Tow Ready Custom Fit Wiring Harness, part number 118423. We will start by opening the trunk. We'll then remove the threshold trim. After popping the threshold trim loose we'll go ahead and remove these two cargo nut screws. With those out of the way we'll go ahead and peel back the trunk liner. With the trunk liner out of the way you can see… see more >