you have an ISO 90 deg connector at one end and a Fakra Connector at the other. So I think you may have the wrong Booster
Look at connects2.com and you'll see what you should have, choice of two depending on age of your car. CT27AA05 and CT27AA08. I think its the 08 but check your ariel connections.
Well that end will go into your head unit where your aeriel is now, then the outside aerial u will have unplugged fits onto the other end. All thats left to do is connect the wire to the remote of your head unit (white/blue wires). Straight forward and should take 5-10mins to .
regards steve
blue wire needs to be connected to the remote wire from your headunit (blue and white one). It's just a 12v switched power source buddy. It has a plastic sheath over it to stop it shorting out to anything metal, if i remember right you can open that sheath somehow or slide it back up the wire a bit, plug your wire onto it and the slide the sheath back over the connection to stop in shorting out afterwards. If you can't get the sheath back over then you need to wrap some insulation tape around it to stop short circuits. hope that helps