Radio & Speakers

Good evening.

For our Audi V8 D11 3.6 (1989) I am currently looking for an original radio incl. Loudspeaker set. Unfortunately, the previous owner was very creative here, even with the loudspeakers.

Even about the V8 book or the PR COdes I could not find out properly what was built in. I now suspect that I am an Audi Gamma CC. There is no device for speakers in the front.

Now my questions:

1. Provided it is an Audi Gamma CC, which speakers are compatible?

2. Do you happen to have pictures of an original mounting situation of the speakers at the rear? Unfortunately, the previous owner was also very creative.

3. Do you have any idea where you can still get such a radio and speakers? On Ebay I wasn't very successful yet?

4. Do you know a suitable alternative in the form of a radio that is made on old, but has modern technology? - I'm not talking about the '90s Knwood solution.

I would be very grateful for your ideas.

Greetings and another nice evening
Fabian