merc s 320 2003

Hi all back for more help,I'm installing a hands free to a merc s320 2003 but I cant get the fascia off to disconnect the radio loom.It's a strange shape it has a small 3x3" screen displaying the radio station and controls at either side for volume/search ect.There's a gap below this that is blank and an ashtray below that.I have the ashtray out and removed 2x torx screws but that's as far as it goes I can't find the info I'm looking for I've tried dash mount but it's a bit vague with the descriptions and doesn't cover the model I also tried sio communications but there sites is closed.