Answer
May 07, 2025 - 01:39 AM
Yeah, you’ve got plenty of aftermarket speaker options that’ll fit the 2007 Lexus GS450h, but there are a few things to keep in mind before you dive in. If your car has the Mark Levinson audio system, it's a bit trickier because those speakers are matched to factory amps with specific ohm loads (usually around 2 ohms) so dropping in standard 4-ohm aftermarket speakers can mess with volume and sound balance unless you bypass or swap the amp too.
But if you’ve got the standard factory audio, it's much more straightforward. Most 6.5" component or coaxial speakers will fit in the doors with a little work. You’ll likely need adapter brackets and maybe wiring harnesses to keep it plug-and-play without cutting into the factory harness. Brands like Infinity, JBL, Pioneer, and Kicker make good drop-in options that’ll sound way better than stock.
In fact, here are some of the more popular options:
- Memphis PRXTY60C (6.5" component set)
- Kicker CSC65 (46CSC654) (6.5" coaxial)
- JBL GX608C (6.5" component set)
- Kicker 51CSC54 (5.25" coaxial)
- JBL GX528 (5.25" coaxial)
The rear deck speakers and tweeters can also be upgraded, but some may be glued or riveted in, so be ready with a drill or trim tools if needed. Fortunately, the service manual helps a lot with panel removal and speaker location, so you don’t break any clips or chase wiring blind.
