I am the owner of toyota altis year 2012. My radio auto on off by itself and channel automatic change frequency the Bluetooth when active on the mobile and I engage reverse gear and there is incoming call incoming call, the speaker burst to loud volume and can not control. Terrible suffer for 3 years and toyota service centre can not solve the issue. They only ask me minimise the volume control on the Bluetooth when connected. It does not solve the issue and very irritating. Now the radio on off issue getting worst.
Anybody can advise me......
Anybody can advise me......