Bought a Nissan Juke Tekna last August - ex Motability car - 3 years old, full service history. Have had it serviced and MOT at Nissan main dealer in February. Last Thursday, radio blacked out at the beginning of a journey so had to complete with no satnav or radio. Long story short - Nissan main dealer told me this is rare but 'it happens' - only solution to replace the unit. Cost £3000. After I recovered, he suggested going to Halfords for cheaper replacement. Others suggested buying replacement on-ebay which I did on basis it would be better to replace with a Nissan approved radio. Surprise surprise, I get message saying system is locked, contact dealer. If I press reset,everything works, but only briefly. Although I noticed satnav continues on audio even after display goes. Took it to the dealer who services the car and they couldn't have been more unhelpful. Everyone agreed £3000 was a shocking price but they couldn't suggest an alternative. After I insisted, they reluctantly suggested booking car in to let their service team see what they could do at a cost of £268 with no guarantee of success. Any ideas?