Scion iA Speaker Size

Dashboard Speaker

Front Door Panel Speaker

Rear Door Panel Speaker

Scion iA Speaker FAQ

Should I replace front or rear speakers first in my Scion iA?

Replace the front door speakers first. Your ears naturally focus on sound coming from ahead, so upgrading the 6.5 inch front speakers delivers more noticeable improvement than starting with rear panels. The Scion iA's front location handles most of your music's detail and vocal clarity. Rear speakers mainly fill in ambiance - they matter, but not as much for daily listening impact.

What's the difference between coaxial and component speakers for Scion iA doors?

Coaxial speakers combine the woofer and tweeter in one unit, making installation straightforward in your 6.5 inch door openings. Component speakers separate these elements - woofer goes in the door, tweeter mounts elsewhere (like using the existing 1 inch dashboard location in the Scion iA). Components typically sound better because each driver handles its specific frequency range without interference. But coaxials work fine if you want simpler installation without running extra tweeter wires.

Can I use full-range speakers in the rear doors of my Scion iA?

Yes, the rear door panels accept full-range 6.5 inch speakers. These handle all frequencies in one driver - no separate tweeter needed. Full-range speakers work well for rear fill duty since you're mainly wanting background sound rather than critical listening detail. They're usually more affordable than component setups too. Just verify the mounting depth fits your Scion iA's door panel space before purchasing.

Do I need to upgrade the dashboard tweeters in my Scion iA?

Maybe, depends on your front speaker choice. If you install component speakers in the front doors, you might want to replace those 1 inch dashboard tweeters for better frequency matching. The stock tweeters probably handle around 3000-20000 Hz. Aftermarket tweeters could extend this range or provide cleaner high-frequency response. But if you go with coaxial front speakers, the dashboard tweeters become somewhat redundant since coaxials have built-in tweeters.

What power handling should I look for in Scion iA replacement speakers?

Target speakers that handle 15-50 watts RMS for the 6.5 inch positions. Most factory head units in the Scion iA put out around 15-20 watts per channel, so speakers rated for 25-30 watts RMS give you headroom without being overkill. Peak power ratings (like 200 watts max) don't matter much - focus on RMS values. The 1 inch dashboard tweeters need less power, maybe 10-25 watts RMS since they only handle high frequencies above 3000 Hz or so.