Volvo V40 1998 - SC-805 head unit - Alpine CHM S630 CD changer. Just received the interface/adapter VOLA2 which requires a connection(yellow wire) to Permanent 12v supply and a connection (red wire) to accessory/Switched 12v supply. Can anyone give me some help as to where to connect these two wires, preferably a wiring diagram. I have tried for hours but lack of knowledge won. I did find some info. which said:- "Both can be sourced via the two accessory blocks (one yellow,one black)behind the panel under the glove box" but I could not locate these. Help please kgm