Nissan Car audio amp

What is your question?

I drive 2016 Nissan Altima S model and my radio unit display works but there is no sound coming out. Checked all the fuse and it appears it’s fine. I didn’t see the amp in the trunk anywhere. Does the model S have an amp? Or is this build in inside the head unit itself?

What makes this problem better or worse?

No sound

How long has your 2016 Nissan Altima had this problem?

1 week