I always wondered about those fake grills next to the head unit... but my knee rests right on that and would not work well. Honda SHOULD have put a-pillar tweeters, mid-range in the current locale, and a sub in every car. Cheap bastards!

Oh, well... the sacrifices we make for driving enjoyment.

 

Be careful about drilling holes behind the seats as I believe the gas tank is back there in the general vicinity.

 

I think those are actually knee rests, there is no room for speakers behind there.

BTW, I find when I am a passenger at the track I can comfortably hold myself in by bracing myself with my knees on both sides. Don