Pontiac Grand Am Speaker Size

Front Door Panel Speaker

Rear Deck Lid Speaker

Dashboard Speaker

Pontiac Grand Am Speaker FAQ

Should I replace dashboard speakers first in my Pontiac Grand Am or focus on the door panels?

Replace the front door speakers first. The 4 x 6 inch front door panels handle most vocal frequencies and mid-range detail your ears actually notice. Dashboard speakers from 1990-1991 models only cover limited frequency range anyway. Door speakers sit closer to ear level - better stereo imaging. You'll hear immediate improvement in clarity and volume. Dashboard replacement can wait unless they're completely blown.

What's the difference between coaxial and component speakers for my Grand Am's front doors?

Coaxial speakers combine woofer and tweeter in one unit - easier installation, typically 20-60 watts RMS handling. Component systems separate the tweeter from the woofer, usually handle 30-100 watts RMS better. Components give you more precise sound staging but... installation gets complicated. You'll need to mount tweeters separately, run additional wiring. For the Pontiac Grand Am's 4 x 6 inch front door location, quality coaxials might be more practical unless you're planning serious audio upgrades.

Can I install 6 x 9 inch speakers in locations other than the rear deck of my Grand Am?

Rear deck lid is really your only factory 6 x 9 inch option. The mounting depth and opening size won't fit anywhere else without major modifications. Front doors are limited to 4 x 6 inch maximum. Dashboard space is even smaller at 4 inch. You could theoretically custom mount 6 x 9s in rear doors but... that involves cutting, fabricating brackets, checking clearance with windows. Stick with the rear deck location - it's designed for those dimensions and provides good bass response from that position.

Why does my Grand Am have both coaxial and triaxial options for rear speakers?

Triaxial adds a third driver - usually a super tweeter - on top of the standard woofer and tweeter combination. Handles frequencies around 10-20 kHz that coaxials might miss. Whether you'll actually hear the difference depends on your music and... honestly, your hearing range. Most people over 25 can't detect much above 15 kHz anyway. Triaxials typically cost 20-40% more than equivalent coaxials. The rear deck lid position in your Pontiac Grand Am works fine with either type, so budget might be the deciding factor.

What impedance should I look for when replacing speakers in my Pontiac Grand Am?

Stick with 4-ohm speakers for all positions. Factory head units in Grand Am models expect 4-ohm loads - using 8-ohm speakers reduces power output significantly, maybe cuts volume by 30-40%. Lower impedance like 2-ohm can overheat your stereo. Most aftermarket car speakers come in 4-ohm anyway, but check the specifications. If you're running an aftermarket amplifier, then 8-ohm speakers become viable but... that's a different conversation entirely.