Having worked on American muscle cars all my life and now purchasing a (new for me) 2005 Gran Sport I am somewhat confused as to how many, and the location of oil drain plugs on this car. My understanding is that there are two drain plugs, I do see the large one in the middle towards the front of the sump (large one with the allen head) but where is the second one located ? I do have the OEM filter and two crush washers needed. Any help is appreciated and pictures are most welcome. Thanks in advance.