Audio / bluetooth switches in steering wheel

Hello,

Looking for help on a 2010 Nissan Altima 2.5 SL
The switches in the steering wheel for the radio controls and Bluetooth phone controls are not functioning properly. They do not do the function they are supposed to. Nothing turns the volumn up, but a couple of them turn it doem, and some of them change to station preset, etc... None of them work as they should.
I have already changed the clockspring and still have the same issue
Any other suggestions?