Pontiac G6 Speaker Size

Front Door Panel Speaker

Rear Speaker

Rear Door Panel Speaker

Pontiac G6 Speaker FAQ

What speakers should I replace first in my Pontiac G6?

Replace the front door panel 6.5 inch speakers first. They handle most vocals and mid-range frequencies that you actually notice while driving. The Pontiac G6's front speakers typically run around 20-50 watts RMS with 4-ohm impedance. Rear 6 x 9 speakers can wait - they're mainly for fill and passengers. Front speakers give you the biggest sound improvement for your money. You'll hear clearer dialogue in music and better overall clarity. Start there, then consider rears if you want more bass presence.

Can I install component speakers in my Pontiac G6 rear doors?

Yes, but mounting the tweeter might be tricky. The 6 x 9 rear door panels in the Pontiac G6 were designed for coaxial speakers primarily. Component systems separate the tweeter from the woofer - you'd need to find mounting spots for tweeters, probably in the rear deck or door panels. Most people stick with high-quality coaxials for the rears. They're easier to install and still give decent sound. If you really want components back there, expect some custom work. The crossover networks usually fit behind the panels fine though.

What's the difference between coaxial and full-range speakers for my Pontiac G6?

Coaxial speakers have separate tweeter mounted on the woofer cone. Full-range tries to reproduce all frequencies with one driver. In your Pontiac G6, coaxials generally sound better because the tweeter handles highs while the main cone does mids and bass. Full-range speakers can work but they often struggle with crisp highs above 8kHz. The 6.5 inch front positions work well with coaxials around 90-100 watts peak power. Most factory Pontiac G6 systems expect coaxials anyway. Full-range might save you a few dollars but you'll probably notice the sound quality difference.

Do I need an amplifier for aftermarket speakers in my Pontiac G6?

Not necessarily, but it helps significantly. Factory head units in the Pontiac G6 typically push around 15-20 watts RMS per channel. Most aftermarket speakers can handle 50-100 watts RMS easily. You'll get acceptable sound from just the head unit power, but adding an amplifier really wakes up those speakers. Even a modest 4-channel amp delivering 40-60 watts RMS per channel makes a huge difference. The 6 x 9 rears especially benefit from more power - they can actually produce some decent bass with proper amplification. Factory power leaves them sounding thin.