hi, i have just bought a 52plate 307 hdi glx, and was told that the in dash 5cd changer did not work and i have to replace it. i bought a new one on ebay and switched them over. the cd changer itself operates, it accepts and ejects cd's and lights up however does not operate throught the headunit. it is as if the standard headunit(cassette deck) has not 'picked' it up. can anyone help me with this? thanks...tally