How does one go about changing the countdown timer sound to a different tune? (again)

Only one, stock sound unlike my countdown timer on my S5. Liked having that customization, had the Doctor Who tune Tick Tock Goes The Clock til' ***** Kills the Doctor. In order to change my notifications I found a way online. You have to copy the sound into the notification folder. The countdown timer has no choice, I was wondering if there was currently a way to do it, along the same lines, or if I would have to wait for a patch that may never come

Already had it posted once on link below, but almost thinking it'll be faster to post again because that wasn't the correct answer.

http://forums.androidcentral.com/ask...ml#post5365472