Is it possible to connect the HTC one to the armrest input and use the steering wheel controls? I've tried the usb wire but this doesn't seem to work.
I can connect it using the auxiliary input but I can't use the steering wheel controls.
Any input would be greatly appreciated 
When you use the USB cable, drag your notification bar down on the phone and there's 2types of connection, mtp and camera, try mtp.
Also music might need to be on the root directory of the phones memory.
