This content details the soundsystem upgrade to my Porsche 964 C2.

Includes Blaupunkt Frankfurt bluetooth head unit, 6.5 inch Focal PS 165 SF component speakers in the front doors, 8 inch Focal Active iSub under the drivers seat, and 4 x 6 inch Infinity Reference coaxial speakers in the rear.

I'd call it a midlevel sound upgrade, without cutting or altering the factory sheetmetal...or fitting an additkjonal amplifier in the frunk.