Ok guys, the past couple days I have been replacing my back-up lamps. The previous owner reversed into something and smashed the passenger side lamp. Well, while I was under the back end unbolting them, I saw a rubber/plastic tube plugged into my shock absorbers. I recognized the tube because I have seen them in my trunk near the gas filler where 2 of them that meet at a T-shaped connector. I just didn't know what was at the other end. Now I know its my shock absorbers, but what is it for? Is it to pump oil or air into my rear shocks?