Recommendation for used cars with reasonable equipment

Hello! Since my Corsa C is now at 242000km, it’s time to take care of a new vehicle. The following conditions should be met: – maximum 350€ (less is welcome) – maximum 150000km – should not look like a girl’s car. (i.e. Fiat 500, nissan mica, Lupo,…) And now the most important thing: Since I am a great music lover, the sound of the system should not be grotesque. By that I don’t mean HighEnd. I don’t want to screw anything. Explanation: I find the Corsa C (Bj 2003) system great! (no way, normal factory speakers). The system in the Polo Fox (Bj 2005) of my girlfriend is unacceptable, in the Nissan Micra (Bj 2004) it is partly ok, but does not come along with the Corsa. So in this area we move in sound. From the type I would like to have lower middle class, so Astra size. But small cars also come into consideration. So far I was always on the Opel rail in search but I ask I don’t know if there are any other brands that would meet my criteria. Unfortunately, I have no way in this haystack to find out which cars have a tolerable system. So. And now you come into play. Does anyone know which cars in this price range have a reasonable system from factory? Please don’t give any clues that you “have to install XY in any case to have a good sound”. As I said, the Corsa is completely sufficient in this respect. if a “acceptable sound” is very subjective. Therefore above the examples, maybe that helps a little. I would be very grateful about answers of any kind. Thank you in advance, xbertix