I'm looking for help disconnecting the ecm plug in a 2005 Accent. It's the one in the 2 pictures I'm attaching with the red arrow pointing at it. I tried pulling on it and it wouldn't budge. I'm assuming you have to squeeze something or lift something, or press on something before you pull on it. It's in a difficult location to access so it's difficult to play around with. Would be most grateful if someone could offer some help.