Oh goodie, I think I can help you with both questions! About the PDC, the dealer can lower the volume for you as it is a car memory feature. (You CANNOT do it yourself, sorry.) Also, like that guy ^^^^^^ just said, if you pull the signal light toward you after you have turned everything off, the lights will come on for 40 seconds (or longer if you ask the dealer while you are setting your PDC.) Also, while you are at the dealer, ask them about all of the other options that you can set... 
Hope I helped.
Hunter
Hope I helped.Hunter
