Nissan Altima Speaker Size

Rear Deck Lid Speaker

Front Door Panel Speaker

Dashboard Speaker

Rear Door Panel Speaker

A-Pillar Speaker

Nissan Altima Speaker FAQ

Which speakers should I replace first in my Nissan Altima for the biggest sound improvement?

Start with the front door speakers - they handle most of your music's midrange and vocal frequencies. The 6.5 inch front door speakers in newer Altimas carry about 60-70% of what you actually hear. Rear deck speakers might seem important because they're bigger, but front speakers create the soundstage you sit in. Replace those 6.5 inch door speakers with quality coaxials rated around 50-75 watts RMS. The improvement should be immediately noticeable in clarity and detail.

Can I install component speakers in my Nissan Altima's front doors?

Most likely yes, since the mounting locations support both coaxial and component types. Component speakers separate the tweeter from the woofer - the tweeter typically mounts in the A-pillar or dashboard location while the 6.5 inch woofer goes in the door. This setup creates better stereo imaging because high frequencies come from a different location than mids. You'll need to run new wiring to the tweeter location though. The crossover can mount behind the door panel or under the seat.

What's the difference between the 6x9 and 6.5 inch rear speakers in my Nissan Altima?

The 6x9 speakers on the rear deck can move more air - roughly 40% more surface area than 6.5 inch rounds. This means better bass response below 100 Hz and higher power handling, often 75-100 watts versus 50-75 watts for the 6.5s. But 6x9s sometimes sound less focused in the midrange. The 3.5 inch rear speakers from 2008-2013 were probably a cost-cutting measure... they'll handle vocals okay but won't give you much bass. If your Altima has the 6x9 setup, that's actually preferable for overall output.

Why does my Nissan Altima have both dashboard and A-pillar tweeters?

It doesn't - the tweeter location changed around 2007. Earlier Altimas used A-pillar tweeters, newer ones moved them to the dashboard. The A-pillar position creates wider stereo imaging but can sound harsh at highway speeds. Dashboard tweeters aim more directly at your ears, which improves clarity but narrows the soundstage slightly. Both are 1 inch tweeters running similar frequency ranges above 3-4 kHz. If you're upgrading to components, the existing tweeter location determines your installation approach.

Should I replace the small 3.5 inch speakers in my 2010 Nissan Altima?

Those 3.5 inch speakers handle fill duties - they're not critical to your sound quality. Focus your budget on the 6.5 inch door speakers first, then the rear deck speakers if present. The 3.5s probably run frequencies above 200 Hz and below 8 kHz... decent for ambience but they can't reproduce deep bass or extended highs effectively. If you do replace them, look for speakers with good midrange response rather than trying to get bass from such a small driver. Maybe 25-30 watts RMS maximum.