Infiniti G25 Speaker Size

Front Door Panel Speaker

Rear Door Panel Speaker

Infiniti G25 Speaker FAQ

What speakers should I replace first in my Infiniti G25 for the biggest sound improvement?

Replace the front door 6.5 inch speakers first. These handle most vocals and midrange frequencies you actually hear while driving. The front positioning means better stereo imaging too. Factory speakers in the G25 typically run around 25-30 watts RMS with 4-ohm impedance. Look for aftermarket 6.5 inch speakers rated 50-75 watts RMS that can handle the frequency range from about 60Hz to 20kHz. The 1 inch tweeters up front... they're helpful but secondary priority unless you're going full component system.

Can I install component speakers in all four door positions of my Infiniti G25?

Yes, but it gets complicated. Front doors already have separate 1 inch tweeter locations, so component speakers work naturally there. Rear doors don't have dedicated tweeter spots though. You'd need to mount the component tweeters somewhere - maybe rear deck or custom door mounting. Most people just run coaxial speakers in the rear 6.5 inch positions. Keeps things simpler and the rear mainly fills in ambient sound anyway. Component systems really shine up front where you sit.

What's the difference between coaxial and component speakers for my G25's 6.5 inch locations?

Coaxial speakers combine the woofer and tweeter in one unit. Drop-in replacement, no extra wiring. Component speakers separate them - 6.5 inch woofer handles bass and midrange, separate tweeter does highs. Better sound quality because each driver optimizes for its frequency range. In the G25, front doors can use either since you already have tweeter locations. Rear doors work better with coaxial unless you want to get creative with tweeter mounting. Components typically cost more but... the sound separation is worth it if you're serious about audio.

Do I need to upgrade the factory amplifier when replacing Infiniti G25 speakers?

Depends on your setup. Base G25 systems usually run speakers directly from the head unit - maybe 15-20 watts per channel. Premium Bose systems have dedicated amplifiers that might push 25-35 watts to each speaker location. Most aftermarket 6.5 inch speakers handle 50+ watts RMS easily, so they'll work fine with factory power. You just won't reach their full potential. Adding an aftermarket amplifier later gives you more headroom and cleaner sound, especially for the front components. But speakers first, amp later makes sense budget-wise.

What size and type of speakers fit the rear doors of an Infiniti G25?

Rear doors take 6.5 inch speakers - coaxial, component, or full-range types all fit. Full-range speakers handle the complete frequency spectrum in one driver, though they don't specialize like component systems do. Coaxial speakers probably make most sense back there since rears mainly provide fill and ambiance. Look for 4-ohm impedance to match factory specs. Power handling around 40-60 watts RMS should be plenty. The rear door panels might need minor modification depending on speaker depth, but 6.5 inch mounting holes are standard.