What kind of aux/usb cable are you looking for? ie (male to male aux, male with female end aux, usb to micro usb, ect). For an aux cable thats male to male ends this thing when fully wound up says its only 2inches long, but also give you the option to expand its size when needed. For the male-female aux cables one of these splitters, if you wanted to you can just cut the extra input side off. As for usb without knowing more cant recommend anything but they make the retractable kinds with usb cables. BTW what are you using if for? **edit found this usb connector when searching "port savers"