Radio 2 Din Android: Weak Microphone & Power Issues - External Mic Connection Help Needed

Hello. I have a 2 din radio with android that I bought in China (you don't have to tell me that it's shit, because unfortunately I already know ) I would like to connect it to an external microphone (I bought one like the one in the picture). The gentleman in the electronics store said that it would be good, but it doesn't work. And I don't know how to connect it correctly. The second problem I have is that the radio steals my power, I have to disconnect it, it consumes 0.2-0.5 ampere. Is anyone able and willing to help me ?? Thanks in advance.

And in what photo is the microphone? Because I can't see him.
And even if I saw it, it may not be clear what this one is. Do you know its type (how it works) and parameters?
What input do you connect this microphone to?
A car radio usually has inputs designed for connecting signals from other devices. Such signals are typically several hundred millivolts, so the signal from the microphone without an additional preamplifier is too weak.

Poor radios used to take so much power in a waking state. As you can see, you can still find such.
The only advice is to connect this radio behind the ignition switch (unless it turns out that without power it doesn't remember the settings).

The microphone is in the 1st and 2nd pictures. It is supposedly connected under AUX but when I connect it it doesn't work. Or it works but the radio uses the built-in one. Only this radio works only after turning the ignition ...

I believe it is there, but not much can be seen.
The AUX input requires a much larger signal than the microphone provides.
And if the microphone doesn't work at all, it may have a built-in preamplifier that requires power, and the AUX input doesn't provide it.

I understood that the radio consumes you such a large current when it is turned off.
The radio usually has two power inputs - one "to play", the other to sustain. I meant to connect both behind the ignition switch.
Depending on what is supported by this second input, the radio may not remember, for example, the last played station or track, but it may also have been unprogrammed.

The microphone is connected by a black cable to power the car. No radio unfortunately doesn't remember anything if it's connected differently. I will be at home, I will send more accurate photos of the microphone. And when it comes to electricity, so it draws too much with the engine off. 2 x discharged my battery

Hello. I am also struggling with a weak microphone built into the 2 din radio. The entry and exit list has no markings for the external microphone. However, there are a lot of unlabeled pins in the socket and maybe some of them are responsible for the microphone. Someone something? The radio has no markings, only the serial number visible on the photo

mkm126 wrote:

The gentleman in the electronics store said that it would be good, but it doesn't work.

Such microphones are attached and usually used in monitoring to be attached to the camera.
Anyway, the microphone is powered up so it has a preamplifier and the signal after connecting the power supply should be amplified. After connecting to AUX IN the sound should be but only on the function in the AUX radio and now the question is will it work as a built-in microphone? I do not think so.

mkm126 wrote:

The second problem I have is that the radio steals my power, I have to disconnect it, it consumes 0.2-0.5 ampere. Is anyone able and willing to help me ?? Thanks in advance.

The radio has two wires, one is B +, i.e. direct power from the battery, i.e. supporting power after turning off, and the ACC cable, i.e. 12V, appearing after turning the ignition switch to the ON position. After turning the ignition switch OFF and removing the key, the voltage disappears on the ACC cable and the radio goes into sleep mode, i.e. I maintain the watch and user's settings. Consumption 0.2-0.5A is far too much. The voltage on A13 should turn off when the ignition is turned off and the voltage on A16 should be on all the time. The radio goes to sleep sometimes after a while and the power consumption should drop to 0.05A

marcel_76 wrote:

Hello. I am also struggling with a weak microphone built into the 2 din radio. The entry and exit list has no markings for the external microphone. However, there are a lot of unlabeled pins in the socket and maybe some of them are responsible for the microphone. Someone something? The radio has no markings, only the serial number visible on the photo

Please create a separate separate topic.

gradek83 wrote:

Please create a separate separate topic.

Specially I put in this topic so as not to duplicate threads on the same issue.

From the seller with alli ..... I got a photo (bottom photo) where to connect an external microphone. The photo shows a soldered cable to two points. Right next in this photo is described mic + and mic-. Isn't it better to solder there?
(Top picture of my radio with soldered wires)
Ps. When connecting an external microphone to this cable, there is no big difference ?

Does the external microphone work after soldering in?

Added after 9 [minutes]:

I soldered into mic + and mic- and it doesn't work at all.