Hi, I'm new to the forum and this is my first Diesel as well. I have a 2009 Dodge Ram Quad Cab Short Bed 4x4 6. 7L Cummins 6 spd manual and have put about 25k miles on it. I've had it for the last two and a half years, but so far all I've done is Line-X the bed, add a 7 pin trailer harness...