Yes. You can use either the HL1C-J22 cable or the HL1E-J22 cable for this purpose.
The HL1C-J22 cable has a two pin plug to go into the Sound Trap and a 3.5mm plug for your CD player...etc. the HL1E-J22 cable has the same 2-pin plug for the Sound Trap but a 2.5mm plug for your device. So you have to first find out what size jack you have on your device.
You should note, however, the plug in either case is a mono plug, since the two cups on the Sound Traps are independent of each other so you can only listen to your CD player on the side which receives the signal input.