Ive recently bought a 2007 Freelander 2 TD4 HSE Auto, but it has an issue with the radio and head unit display. On start up 75% of the time both the radio and touch screen display will come on but go off a second later and keep flashing on for a second and then off again, sometimes for a good 5 minutes but will then sort themselves out and work perfectly fine.

Any help on why its doing this would be great.

Ive had a look but couldn't find another thread on this but please point me to it if there is one.