Hello, This is my first post so bare with me.

I have a 2011 RRS HSE, had it for 3 months and everything has been working fine.

Overnight the head unit has started playing up and cannot find anything to help.

I can turn on the car fine but the head unit comes on but doesn't allow me to change input source.

The radio is displayed but doesn't play any sound.

Sat nav and Bluetooth phone work fine but DAB, RADIO and AUX are not working.

When driving around 5-10-15 minutes the head unit ghosts out DAB & TV. Suddenly everything comes into life and works perfectly.

Does anyone know how to fix this as I want to plug in my phone for music and not have to wait for it to come into life.

Ive done an ECU reset and disconnected the Amp under the seat. Battery is reading the correct values.

Ive also gone into the secret menu and performed a self test. When the fault happens the self test "Timed out" but when working the self test works fine and displays no faults.

If anyone can help I would really appreciate it"!!!

Cheers