Hi All, For the above retrofit for a concert radio with no navigation, i.e. using CAN bus, Do you need to remove the passenger seat to install the module or do you just need to push the passenger seat all the way back/forward to access this spot? Is it a big job? I am getting someone to do it but they haven't done it before, I have the instructions from KUFATEC. Has anyone done this retrofit before and mounted it under the drivers seat? Also once installed I understand we need to do coding via VCDS which I have access to. But will it cause any problems later when I take it in for service or each time I start my car and make a bluetooth connection will it reject it? I heard the following: "Unless the BT was fitted by an Audi Dealer and the relevant SVM numbers were applied online to update the servers in Germany, your cars default settings would be reset each time it's connected. If it has not then your dealer has not connected it to the VAS system. " Is this true? I hope not! As I already purchased the oem BT kit. Cheers, K.