Changing rear 12v socket to always on

[PropPlanePat]

Hi Everyone,

I'm sure this has probably been asked a million times before but I did search and couldnt find anything specific to a B9.

I have a 2017 A4 B9 Avant and want to change the boot 12v to always on. This is because I need to be able to plug in my telescope to the power socket when im out in a field, but need to lock the car so that the DRLs turn off it seems, which as you know turns off the 12v.

So I have 2 choices, make the rear 12v always on or try and figure out how to turn all the lights off without locking the car 🙂 seems that the 12v is an easier option.

If anyone has any pointers to either options I would be eternally grateful

 

Cheers!

[daveyboy1967]

Just doing a bit of lateral thinking here, wouldn't it be easier to get a portable 12V powerpack? It would free you up from having to stay near the car too. And I've spent many a cold night staring down a telescope in the middle of nowhere too mate, my family think I'm mad!

[PropPlanePat]

Easier yes, cheaper not so much 🙂 If I cant resolve the turn off lights/turn on 12v issue Ill have to go down that route but I'd sooner use my car as a giant 12v lol

[cliffcoggin]

Patrick.

You have not mentioned the electrical load of the telescope but consider this: if you are delayed returning to the car its battery may be flattened leaving you unable to start the car or perhaps even open the doors to enter. That would be no fun on a cold dark night miles from home.

[PropPlanePat]

 A point well taken but Ill only be as far away from the car as the length of the cable and the telescope only draws 0.5 amps so Im not too concerned.