Hello i am a first time owner of a 2014 jaguar xf sportbrake 3.0 and this morning i started the car and i have no radio (greyed out), no phone, no sat nav and no sound on the parking sensors. I have tested the battery and it is good, i have also checked the fuses in the boot which are all good. I have tried taking the battery terminals off for a time to try and reset but problem still there. Has anyone got any remedies? Thanks