Took apart each steering wheel button to check out the circuit boards. Even though it's just a one button difference between the 2 years, the circuit boards are different. I'm not too well versed in circuit boards but just from looking at them both side by side I can tell it wouldn't work.
So in conclusion:
Steering wheel buttons on the left side (audio controls) are not plug and play as well as the right side (dashboard controls).
The wiring harnesses were the same.
In the end no pause/ play button but peace of mind that I tried it out.
