I have a new SEAT MII Toca which came with the Sat Nav included. Since first picking it up 2 weeks ago the voice on the Sat Nav has not been reliable, sometimes works other times silent. At first I thought it was just not seating correctly on the mount on the dashboard but it's been back to the dealer who have replaced the Sat Nav and mounting arm and even after they refitted it, it is still unrelaible some times it works somtimes not.Has anyone experienced the same problem? A person at the garage who looked at it said the radio had to be on for it to work, which seemed odd at the time but I have had it working without the radio so proved that's not the case. I noticed someone on the forum had problems with the reverse screen not working and it was found to be a loose wire under the dashboard, I am hoping I do not have similar problems. It's just annoying that you cannot rely on it working everytime. Any suggestions most welcome.