Audi 4000 Speaker Size

Dashboard Speaker

Front Door Panel Speaker

Rear Deck Lid Speaker

Rear Door Panel Speaker

Audi 4000 Speaker FAQ

Which speakers should I replace first in my Audi 4000 for the biggest sound improvement?

Start with the front door panel 5.25 inch speakers. These handle most of your midrange frequencies and sit closest to your ears. The Audi 4000's front doors can accommodate coaxial, component, or midrange speakers - component systems usually deliver the best separation if your budget allows. You'll notice clearer vocals and better instrument definition immediately. The dashboard 4 inch speakers come second since they fill in the upper frequencies, but the front doors make the most dramatic difference in overall sound quality.

Can I install component speakers in all locations of my Audi 4000?

Most locations accept component speakers, but practical installation varies. Front door panels work well with component systems - you've got space for 5.25 inch woofers and can usually mount tweeters in the door cards or A-pillars. Rear deck lid also handles 5.25 inch components effectively. Dashboard spots might be trickier since you're limited to 4 inch coaxial or full-range drivers typically. The rear door panel in some Audi 4000 models supports component setups too. Check your specific door panel depth before ordering - some aftermarket component woofers run deeper than factory speakers.

What's the difference between coaxial and component speakers for the Audi 4000's 5.25 inch locations?

Coaxial speakers mount everything in one unit - woofer handles bass and midrange while a small tweeter sits on top for highs. Simple installation, decent sound. Component systems separate the tweeter from the woofer, letting you position each driver optimally. Better soundstage and frequency response, but requires more wiring and mounting points. In the Audi 4000's front doors, components usually sound noticeably better since you can angle tweeters toward your listening position. Rear locations might not justify the extra complexity. Your amplifier power matters too - components typically need 50-75 watts RMS to really shine compared to 25-40 watts for quality coaxials.

Why does my Audi 4000 have both dashboard and front door speakers?

It's about frequency distribution and soundstage width. The 4 inch dashboard speakers handle higher frequencies - roughly 200Hz to 20kHz - while front door 5.25 inch units cover midrange and some bass. Creates a broader sound field across the cabin width. Factory design probably used basic full-range drivers in both locations, which creates some overlap. When upgrading, you might run dedicated midrange speakers in the front doors and keep full-range units in the dashboard. Or install a proper component system with crossovers to divide frequencies cleanly. Some Audi 4000 owners actually disconnect dashboard speakers after upgrading the doors to avoid phase issues.