sl57

Unfortunately Volvo has that info you need in the Can-Bus network. A british company Connects2 offers a Can-Bus reader for many european brands but they do not list the S80 is a model that is applied. However, it does work on some other models. I have not found a steering wheel interface for any Volvo model that uses Can-Bus for communication between the radio and steering wheel. You can get away without using VSS on Pioneer's AVICs and still achieve simple Hybrid mode. Good luck.