I have just purchased a secondhand Sony "Connects 2" adaptor lead to operate my Sony head unit from my steering wheel controls and to utilise the MFD on my MK4 Astra. The thing is with the lead being second hand there is no instructions for the connections, I can probably work most of it out myself but there are a couple of leads with crimped bullet connectors I am not sure about. One is a red wire and the other a blue/white. If anybody has fitted one of these before or has instructions for fitting one then any help would be appreciated. Thanks.