I can see the high-side port right out front on the passenger side. 
However I cannot locate the low-side port to re-charge my A/C. 
It's highs of near 100 every day here in Austin. 
  
Can anyone provide a photo or graphic of where this is on the 2008 Edge? 
I'm not a car person. 
I've also googled for images and instructions but they are so general as to not be helpful to me 
I've attached a photo which includes what I believe to be the high-side port.. 
  
Thanks so much! 
  
Mikella