Fiat 124 Speaker Size

Dashboard Speaker

Front Door Panel Speaker

Rear Deck Lid Speaker

Fiat 124 Speaker FAQ

Which speakers should I replace first in my Fiat 124 for the biggest sound improvement?

Start with the 5.25-inch rear deck speakers. They handle most of your mid-bass output and upgrading these will give you the most noticeable difference right away. The rear deck location usually has better acoustics than door panels too. After that, tackle the front door 4-inch speakers since they're your primary stereo imaging source. Dashboard speakers can wait - they're mostly fill speakers anyway.

Can I install component speakers in all three Fiat 124 locations?

Yes for front doors and rear deck, but dashboard mounting gets tricky. The 4-inch dashboard spot works better with coaxial or full-range speakers since there's limited space for separate tweeters. Front doors can definitely handle components if you mount tweeters in the sail panels or A-pillars. Rear deck has plenty of room for component separation. Just remember components need more power - probably 50-75 watts RMS minimum to sound decent.

What's the difference between coaxial and full-range speakers for the Fiat 124?

Coaxials have a separate tweeter mounted on top of the woofer cone, while full-range speakers use the main cone for all frequencies. For your Fiat 124, coaxials work better in doors and rear deck because they give you actual stereo separation. Full-range might be sufficient for dashboard fill duty. Coaxials typically handle 80Hz to 20kHz range more evenly. Full-range speakers often roll off around 15kHz and can sound muddy in the midrange.

Do I need different power handling for each speaker location in my Fiat 124?

Not necessarily the same power, but you want balance. Rear deck 5.25s can probably handle 60-100 watts RMS since they're your bass drivers. Front 4-inch speakers work fine with 40-60 watts RMS. Dashboard speakers need less - maybe 25-40 watts RMS since they're just supplementing the soundstage. Running mismatched power levels creates weird volume imbalances that you'll constantly adjust on the fade control.

What impedance should I choose for Fiat 124 speaker replacements?

Stick with 4-ohm speakers across the board. Most aftermarket head units are designed for 4-ohm loads and will deliver their rated power properly. Using 8-ohm speakers cuts your power output roughly in half. 2-ohm speakers might overload cheaper amplifiers. The Fiat 124's electrical system wasn't designed for super low impedance loads anyway. Keep it simple with 4-ohm and focus on sensitivity ratings instead - look for 88dB or higher.