Experiencing Short Circuit After Attempting to Install Pioneer MVH-190UB Radio in Audi a3 8l

Hello, I wanted to exchange the radio in my connection from some noname to Pineer [MVH-190UB], after connecting the new 0-reaction radio (it was checked at a friend in Nissan and it works), the old radio worked normally, I found that probably the wrong cables go in the iso connector , while trying to "tune up" the cables so that they would go well, I accidentally touched 2 and there was a short circuit, since then no radio works, fuses ok. The connector iso I already have a new one.

I do not know electricity, my knowledge ends with the fact that for something to work, it must have + ^^
This is how the connector coming out of the car looks like:


And this is the radio cube:

Any advice what can I check or do? Is it better to take it to an electrician?
PS. Maybe someone from Gliwice and could check it in case of what?

Perhaps there is also a fuse at the ankle, check if there is a ground (-) and a permanent plus, plus a ignition switch. But if you don't feel up to it, take it to an electrician or someone who knows electricity, because bad connection in extreme cases can even start a fire.

addio wrote:

when trying to "tune" the cables so that they went well, I accidentally touched 2 and there was a short circuit,

We take the mass clamp from the battery before this type of work.

addio wrote:

fuses approx

Have you identified all the fuse boxes in the car? Are you able to indicate the fuse from the radio? Wasn't he "tied" with a paperclip?

jdubowski wrote:

Have you identified all the fuse boxes in the car? Are you able to indicate the fuse from the radio?

All that is? One is inside (on the side of the cockpit), the other is a box under the hood. I checked the inside according to the diagrams from the forum, when I checked fuses from lights, etc. I didn't check those under the hood, but I looked at them with my eye, from what I remember now they were only safe "cube-like", there were no 10A / 15A types, etc., although there is a place for them, which surprised me a bit .
What do you mean by writing

jdubowski wrote:

Wasn't he "tied" with a paperclip?

Schemes I used:

addio wrote:

Schemes I used:

And where did you find the fuse from the radio?
If you are sure that it is there (but the description is so twisted that it does not identify it), then you need to remove all fuses one piece and check each with an ohmmeter.

addio wrote:

What do you mean by writing

jdubowski wrote:

Wasn't he "tied" with a paperclip?

If a wire is inserted instead of a fuse, then something else burns instead of the fuse.

jdubowski wrote:

And where did you find the fuse from the radio?
If you are sure that it is there (but the description is so twisted that it does not identify it), then you need to remove all fuses one piece and check each with an ohmmeter.

Yes, number 42, I tried to swap it with others, to no avail.

addio wrote:

Yes, number 42, I tried to swap it with others, to no avail.

Still No. 37 Checked?

jdubowski wrote:

Still No. 37 Checked?

Yes. To be sure, I checked all the fuses. There are no burn marks at all. Like New.

Take the bulb from the front parking lot and check that it lights up with the ignition on, the lights on when you connect it between ground and red and white, ground and blue-gray, and ground and black in a cube with 4 wires.
If the fuses are in working order, the ignition cube could be damaged - the S contact.
When you check the above-mentioned ones, you will know what is missing and where to look.

Thanks to everyone for the answers, situation solved. I drove to a friend of a mechanic, diagnosis - No power to keep the memory of the radio, somehow connected me without it, but just like in the previous radio, I will have to turn the radio on and off from the button. I just wonder why this is so, since there were no connected cables on the previous radio, as he did now, and I had to run the same from the button. Thanks again to everyone.