Linking headlights to interior light

[geraintthomas]

Parking lights with courtesy lights. When the courtesy lights come on, I wanted the parking lights come on too, so that your tail lights, number plate lights and front parking lights illuminate. But I wouldn't want the switch to turn on the courtesy lights if I switch it to the parking lights position, if you see what I mean. So a diode would be needed.

I just thought "Oh! I'll just bridge the 12v from the courtesy light feed to the parking light feed with a diode, so the parking lights don't switch on the courtesy lights, but the courtesy lights do turn on the parking lights whenever the courtesy light is on". But as particlewave said, the courtesy lights have a switched ground, whereas the parking lights have a switched positive. If they were both the same, it would be that easy.

I thought about jumping the fuses but, there's a separate fuse for each bloody bulb. So that wouldn't work either.

[RichRobby]

Originally Posted by geraintthomas

Parking lights with courtesy lights. When the courtesy lights come on, I wanted the parking lights come on too, so that your tail lights, number plate lights and front parking lights illuminate. But I wouldn't want the switch to turn on the courtesy lights if I switch it to the parking lights position, if you see what I mean. So a diode would be needed.

I just thought "Oh! I'll just bridge the 12v from the courtesy light feed to the parking light feed with a diode, so the parking lights don't switch on the courtesy lights, but the courtesy lights do turn on the parking lights whenever the courtesy light is on". But as particlewave said, the courtesy lights have a switched ground, whereas the parking lights have a switched positive. If they were both the same, it would be that easy.

I thought about jumping the fuses but, there's a separate fuse for each bloody bulb. So that wouldn't work either.

Ger.

I believe you have your new DRL's wired to your parking lights. Having them come on with the courtesy light would be great but have you got a hack where they come on automatically with the ignition?
Seems there is a hack for the foglights to come on as automatic DRL's but could do with a hack for parking / sidelights to come on in this instance.

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[geraintthomas]

Originally Posted by RichRobby

Ger.

I believe you have your new DRL's wired to your parking lights. Having them come on with the courtesy light would be great but have you got a hack where they come on automatically with the ignition?
Seems there is a hack for the foglights to come on as automatic DRL's but could do with a hack for parking / sidelights to come on in this instance.

Sent from my ONE A2003 using Tapatalk

Probably going to do that anyway with the DRL's, but that's not a massive bother for me. It's having them come on when I unlock the car, that's what I'd love. The DRL's are very powerful and light up the road quite well, so they'd also serve a purpose when walking back to the car in the night.

[RichRobby]

Originally Posted by geraintthomas

Probably going to do that anyway with the DRL's, but that's not a massive bother for me. It's having them come on when I unlock the car, that's what I'd love. The DRL's are very powerful and light up the road quite well, so they'd also serve a purpose when walking back to the car in the night.

Yes, I realised that. Can they be tripped on by anything to do with the central locking?

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[geraintthomas]

Originally Posted by RichRobby

Yes, I realised that. Can they be tripped on by anything to do with the central locking?

Sent from my ONE A2003 using Tapatalk

Had an idea (post I just made above), but if the car's unlocked, the courtesy light can turn off to save the car's battery. If you wire them up to the central locking, the lights would permanently stay on for as long as the car is unlocked, which wouldn't be good.

Just trying to figure out if there's a way to wire a relay so that if one pin gets a current (in this case, the courtesy light's ground), then it can switch on another one of its pins (a 12v feed to the sidelights). That's all I'm after, a way to wire that up. It probably sounds easier than to actually do it and it may not be possible, but that's why I started the thread as good as it is, I'm not really after any special light sensors and timers. Just a way to make this work.