Poor sound system and strange hissing noises... anyone else having the same problem?

Hello everyone, I’ve had the T03 for about two months now and I have to say I really like the car. However, there’s one thing that’s driving me crazy.

The default audio system is really poor. When I turn on the FM radio, I hear annoying crackles and hums, especially at low volumes. Music via Bluetooth is slightly better, but the overall quality is disappointing nonetheless.

A colleague of mine has the B10 and the sound there is completely different, much cleaner. Do you think it’s a defect with my T03 or is it like that for all of them?

I saw in the Facebook group that others have reported the same problem but no one has provided a solution. I’ve heard about aftermarket audio upgrades from the company cosyev.com (https://www.cosyev.com/it/collections/leapmotor-t03-accessories) but I don’t know if it’s worth investing.

Have any of you made modifications to the audio system? Do you have any advice?