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I have just installed a 12s towbar socket to my car as only had the single socket.

I have installed a 12s upgrade kit. It has a combination relay. I have spliced into the wiring loom for my permanant live. Have installed and connected the relay and have successfully installed the socket.

The question I have is I have taken the trigger wire (switch live) from the 12v socket in the rear of the car. I was unable to locate ignition wire. This 12 v socket only becomes live when the ignition is turned on so im presuming that its performing the same function.

Can anyone advise if this is ok?

Its live with the ignition.

The relay I have is a combination relay tf116 from ryder.

Would you say i need to change this 

In the vauxhall vectra there is a fuse board in the boot. I took the permanant live from a cable that enters here before it reaches the fuseboard. Im confident that this will be sufficient for caravan electrics. The relay is working when ignition is turned before engine is started. 

Like birdman says I will not leave the ignition on while caravan connected. I will switch car completly off when I stop to avoid draining battery.

My concearn is now will the car use the leisure battery when starting. If so does this pose a major problem or is there a way around this  

that solves both problems. I dont use the leisure battery anyway plus its always charging when on hookup.

I will discontect the live for the battery and only leave the fridge on.

Thanks Birdman!!!!