Thank you both for your prompt replies ... There are apparently four speakers and I just assumed that they would be the two base speakers in the door plus two tweeters at head level ... So, does it mean that there are two speakers in the front doors plus two in the rear doors ... If there are only two speakers in the front (in the doors), then the performance isn't going to be as good as with the older versions head-level tweeters ... With both front seats occupied the speakers are obstructed by the occupants ... With only the driver seat occupied it woundn't be quite as bad ... I will probably have to alter the tone controls to give a better audible performance for Classic fm and Radio 3 ... Time will tell ... Thanks again.