VOLKSWAGEN POLO III 1.0 - Cigarette lighter powered by a car radio

Hello!

I have a JVC Ks-FX453R car radio. His back looks like the picture below:



The nature of the installation in the Polo is such that after turning off the ignition and removing the key, there is still electricity in the lighter and often things are plugged in there, which is time-consuming when it comes to constant pulling out.

Can I ask for help, how can I connect to the radio so that the cigarette lighter turns off after removing the key (as it happens with the radio)?

In addition, if I would like to separate the cigarette lighter under the dashboard / front panel so that the main one is usually empty and there are two other sockets in the car (one in the passenger's glove box and the other in the driver's locker), should I use additional fuses on each of the power cables? individual sockets?

Only chargers will be used - for the phone, powerbank and navigation. So if all of this would be in line with the radio with a 10A fuse, should I replace any of the fuses in the box with a larger one?

Thanks in advance for your answer and sorry for the layman level

I would have left the original cigarette lighter wires. Only "cut" + inserted a relay into the cigarette lighter, which would be activated after ignition with a signal from the radio, for example (yellow cable). All this is due to the fact that the cigarette lighter cables are usually of a larger diameter than the radio cables. If you would like to add, for example, one more socket, the fuse is enough.

Ok thanks for the info!

Only if I "cut" + to the lighter and add the converter, will not the original version remain that the current will still flow through the original + to the lighter? Can you do so to cut off the original plus from the lighter and in its place connect a new one, connected to the yellow wire from the radio?

krychu0505 wrote:

(yellow wire)

Red is not by chance

Under 30 you give the lighter plus, 87 is the cigarette lighter output, 86 is ground, 85 - radio control from the red wire.

Added after 2 [minutes]:

Elliopoul wrote:

Ok thanks for the info!

Only if I "cut" + to the lighter and add the converter, will not the original version remain that the current will still flow through the original + to the lighter? Can you do so to cut off the original plus from the lighter and in its place connect a new one, connected to the yellow wire from the radio?

First of all, it's not a converter but a relay. Secondly, if you attach the lighter to the radio, you will damage other elements.

piotrekwoj1 wrote:

Red is not by chance

Right red I'm sorry.

Ok, i.e. the red one gives power from the ignition (after turning the key?) To the radio and you can split it and connect it to the cigarette lighter through the relay.

piotrekwoj1 wrote:

Under 30 you give the lighter plus, 87 is the cigarette lighter output, 86 is ground, 85 - radio control from the red wire.

I don't really understand what numerical markings you are writing about

These are the designations of the relay outputs as in the photo.

Except the cigarette lighter outlet would have to be 87a.

Elliopoul wrote:

Ok, i.e. the red one gives power from the ignition (after turning the key?) To the radio and you can split it and connect it to the cigarette lighter through the relay.

No, the red from the radio is just to drive the relay. This is not a plus to the lighter. Read posts with understanding.
About

krychu0505 wrote:

These are the designations of the relay outputs as in the photo.

Except the cigarette lighter outlet would have to be 87a.

In this picture, yes 87a. There are different manufacturers and different markings, I couldn't find what the standard specifies.

Thanks for the help! Please take a look at the diagram and say whether it should look like this.

Yes exactly.

piotrekwoj1 wrote:

Yes exactly.

Exactly not.
85 is mass and 86 is a plus. This is the rule. If you put a relay with a protection diode, it will be a beautiful short circuit. I do not even mention the fact that the exit is to be at 87 and not 87a. In the above system, the power supply will only be without the ignition on. When turned on, it will disappear.
By the way, you haven't thought about the switch.? What did I do to one customer with a double rocker with a choice of either KL15 or KL30. I put a ten-minute time trial on another. After this time, the sockets were disconnected. Although with an efficient battery there is no problem with consumption.

According to this diagram of the relay connected by krychu0505, then 30-87 is permanently closed, while 30-87A is closed when the signal flows through 86-85.

kkknc wrote:

I do not even mention the fact that the exit is to be at 87 and not 87a

So are you sure?

When it comes to other solutions, all switches that need to be remembered are removed and the relay seems to be the simplest and automatic solution.

Please confirm how it should be connected.

For sure. The construction of the relays and their scheme has not changed, it has always been so. Zoom in on the picture shown. This one you have a diagram. Go to Google or the automotive store to confirm it, the car repair shop will tell you the same. The contact 30 and 87a is closed, after applying the voltage to the coil, it opens to 87.

From what I can see there are different versions where 87 and 87a are swapped. Looking at the markings and connection from the diagram I drew, should everything be ok?

Only 85 and 86 should be swapped from what you wrote.

There are no different versions. There is one. There can also be a relay without 87a with only 87 in the form of one or 2 pins. Everything is in the reference numbers.

You are right - on the relay diagram I bought, 30-87a is normally shorted.



As for the ISO cube on the radio, I checked it and after turning the key in the ignition switch, the current appears on the YELLOW cable.

If I find a moment, I will hook the relay and let you know about the effects!

Added after 16 [hours]:

Hi!

It all worked out!

85-plus, 86 signal from YELLOW ISO cube cable, 30-87 plus from cigarette lighter everything works fine! In addition, on each departure to a new lighter, I installed a 5A fuse in the housing.

Thanks a lot for all your help! You helped me a lot