My docking station won't work with my jailbroke iPhone 4 running iOS 7.1.2?

I have recently jailbroke my iPhone 4 with iOS 7.1.2 using Pangu and now when I put my phone on my dock, it charges however doesn't play music. How can I fix this?

Try using the Pangu users forums then you'll get the right answers, Copy and pasted the addresses into the web page address bar
http://forums.macrumors.com/showthread.php?t=1747783
http://forums.imore.com/jailbreaking-unlocking-hacks-themes-mods/292620-pangu-jailbreak-problem-cydia-wont-install-packages.html