Infiniti G35 Speaker Size

Front Door Panel Speaker

Rear Deck Lid Speaker

Rear Door Panel Speaker

Rear Side Panel Speaker

Rear Speaker

Infiniti G35 Speaker FAQ

Which speakers should I replace first in my Infiniti G35 for the biggest sound improvement?

Replace the front door 6.5 inch speakers first. These handle most of your music's mid and high frequencies - vocals, guitars, instruments you actually notice. The Infiniti G35 uses these as your primary listening position drivers. Start with component speakers around 75-100 watts RMS if your budget allows. The factory 1 inch tweeters in the front doors work with aftermarket components, though upgrading both together gives better frequency response matching. Rear speakers contribute less to overall sound quality since you're facing forward.

Can I install 6.75 inch speakers in place of the 6.5 inch locations in my Infiniti G35?

Probably not without modifications. The G35 switched between 6.5 and 6.75 inch speakers in different production runs, but the mounting holes and brackets aren't always interchangeable. The 6.75 inch speakers typically need larger cutouts - about 0.125 inches more diameter. Check your actual mounting ring first. Some aftermarket 6.5 inch speakers might fit 6.75 inch holes with adapter rings, but going larger usually requires cutting or new mounting brackets. Measure twice, order once.

What's the difference between coaxial and component speakers for my Infiniti G35 front doors?

Component speakers separate the tweeter and woofer into different units. The G35 already has dedicated 1 inch tweeter locations in the front doors, so components use the existing setup better. Coaxial speakers combine everything into one unit - tweeter mounted on the woofer. Components typically sound clearer because each driver handles its specific frequency range without interference. The downside? More complex installation and higher cost. If you're keeping the factory head unit, coaxials around 60-80 watts RMS might be simpler. Components really shine with aftermarket amplifiers.

Should I replace the 6 x 9 inch speakers in my Infiniti G35 rear deck?

These provide bass fill and rear soundstage, but they're not critical for sound quality. The 6 x 9 inch rear deck speakers in the G35 handle some low-end frequencies that the door speakers miss. If your front speakers sound good but you want more bass presence without a subwoofer, upgrading these makes sense. Look for 6 x 9 speakers with good low-frequency response - maybe 45Hz to 4kHz range. Don't expect them to replace a proper subwoofer though. The rear deck location limits how much clean bass they can actually produce.

What impedance should I look for when replacing Infiniti G35 speakers?

Stick with 4-ohm speakers for the Infiniti G35. The factory head unit expects this impedance load. Using 8-ohm speakers will reduce power output - your music might sound quieter even with the volume up. 2-ohm speakers could overload the factory amplifier circuits. Most aftermarket car speakers are 4-ohm anyway, but double-check the specifications. If you're adding an aftermarket amplifier later, it might handle different impedances, but for factory head unit compatibility, 4-ohm is your safe bet.