So up until a couple days ago, I was able to change songs via the forward/backward button on my steering wheel. Out of nowhere, it stopped working and I'm not sure how that happened. My volume control on the wheel still works and I can fast forward or backward through a song using the same buttons that change the track (long press). My music source is my Galaxy S5 (Android) and is connected via Bluetooth. If anyone knows anything about this, your input would be greatly appreciated. Thanks.