Thanks Richard, will give it a go at the weekend!

one more thing (there always is) on the phone system DTC, it was showing open circuit for microphone array, i assume this is normal as mic is now on the VCS?

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Alps
2004 E55 AMG, Spec;Pana Roof, Keyless, Distronic, Rear Elec Blind, Int Door blinds, Active xenons, Parking sensors, dynamic\heated\Vented\massage seats, rear heated seats, power trunk, rear oem monitor, Digital Kombi tuner, AMG mats, E63 Paddle steering.. more to come....