This and a black zip tie in a loop if you want them to lay flat against the door...I use one of these:
I discovered a notch right on top of the speaker by the passenger doors that seems like it had to be included for this purpose...if you reach up with your hand, you can feel it. I've been putting my dry cleaning there for a year. (JLUR)Is there a clothes hanger for the roll bar on 2018 Jeep Wrangler JL ?