My Zafira (2003 model 1.6 active) didn't come with a 12v socket in the boot. I wanted to install one and VX told me that all it needed was a 12 socket on the plug in the loom behind the rear offside 1/4 panel. Did this and nothing, no power there at all. VX then said that I needed a VX relay in the car to power it and this would allow it to power up and stay powered for 15 minutes after the ignition was off. Purchased the relay ( a green one from VX) and plugged it into a block at the back of the fuse panel to the right of the steering wheel. Sure enough, 12v power now at the desired socket. Problem is I'm always getting a flat battery even with nothing plugged into the 12v socket. Seems the new green relay is powering up the other green relay on the main fuse panel and it stays on all the time. When you lock the doors the interior light dims like you would expect, then re-illuminates and goes out again! VX have had the car in the shop for three days without success! Have tinkered myself since they failed and simply pulled the rear socket relay. All seems okay now but no rear socket! Have concerns that VX have sold the wrong relay to me to power up the rear socket. Anyone any experience here? RJO