Upgrade sound system post purchase

I bought a 2025 Q8 last year and I’m beginning to understand why people said to buy the prestige trim because the sound system in my premium level is pretty crappy. I bought this one because it was hard to find the combination of dark exterior and cream interior and I’m happy with the car, but it’s pretty galling that they put a crappy sound system and what is basically an $80,000 car. The speakers can’t handle almost any bass without distortion and the high range sounds chirpy. Has anyone upgraded their sound system post-purchase? I hate to pay for it since I just bought this damn car, but I can’t see driving it for years and years and being unhappy with the music system.