Hello I have an issue with a parrot CK3100, its been fitted and working for nearly 18 months. There have been intermitent problems over the last 3-4 months where it stops working, and now it is just coming up with a message on the screen of No Signal. Any ideas how i can fix this? Or whether it might need a new brain? look forward to hearing from you thank you

Car Audio & Video - Parrot - Hands-Free Car Kit with LCD Display for Bluetooth-Enabled...