Hi after having my seat leon for 3 months now I have had constant issues, from the beginning I have had parking sensors not working and coming up with errors about front assist. Apart from that now I have this "sound setting will be avaliable soon" message that has come up on the screen but seems to have stuck and I cannot use the screen now as it has greyed out and blocked the controls, I have no radio, limited heating setting access, no navigation, and complete in access to the Infotainment system. I have tried holding down the power button but to now joy as it just resets back to how it was, anyway to completely reset it or what I can do?