Boot 12v socket to constant live?

[Maxxed_Ross]

Hi all

I'm hoping with the complicated electrics in these modern cars that it may be possible to re-code the rear 12v socket (the one in the boot) to be a constant live?

At the moment mine only seems to come on when the engine is actually running. I'm running a dog cage fan off it so obviously that's not ideal - as that's the time I don't actually need it at all

can it be done?

 

[Scottk]

Take a feed from the battery.

 

[Maxxed_Ross]

that's an obvious one, but since there's a socket there already it would make more sense to use that if possible

 

[Scottk]

Fused supply from battery to socket.

 

[Maxxed_Ross]

ah right that makes more sense now

that's an option

 

[Scottk]

The air con in the car can be run for about 15 mins after you get out but that may not be enough time. It's amazing how hot a car gets in a short time with the sun on it.

 

[Slackworth]

It's not something that can be coded via software - it needs the physical wiring moving around in the fusebox or alternatively you can cut the wire and use a fuse tap to move it into the permanent live section. Depends how factory looking you want it really and how good you are with wiring.

 

[Maxxed_Ross]

I'm trying to avoid taking apart a new car

If that's what has to be done then I suppose I'll just have to