'Another question before I take plunge and buy one!I have noticed that some have TIM button on top right and some have DAB??? Whats the difference?Need to buy correct one!!'
The ones with the TIM button are not DAB but have all the other functions. The ones made in China do not have DAB or RDS so leave well alone. Can get new units for about £200 on ebay. Need a module for bluetooth if not already fitted and a DAB antenna if not already fitted in present car. Otherwise should plug and play.