MKIV Supra Cargo Mat with Subwoofer: What to Know

Quick answer

If your MKIV Supra has the factory subwoofer in the trunk, you need a cargo mat with a subwoofer cutout. A standard flat mat will sit on top of the subwoofer and never lie flat. Garage Alpha offers an OEM-style cargo mat made specifically for subwoofer-equipped models, so measure your trunk setup first and order that version if the subwoofer is present.

Why a flat cargo mat fails in a subwoofer trunk

The subwoofer in a MKIV Supra trunk sits in a raised housing on the driver side. A cargo mat without a cutout rests on top of that housing instead of the floor. The mat bows, slides, and leaves the passenger side exposed. Over time the rubber or carpet backing rubs against the subwoofer grille and the trunk trim.

A subwoofer-equipped cargo mat has a shaped cutout that clears the housing. The mat then sits flat on the remaining trunk floor. This keeps cargo from sliding into the subwoofer and protects the carpet underneath.

Check your trunk before you order

Open the hatch and look at the driver-side trunk floor. If you see a raised, carpeted enclosure with a speaker grille, you have a subwoofer-equipped model. If the floor is flat across the whole trunk, you need the non-subwoofer version instead.

Do not assume all MKIV Supras are the same. Trunk layouts changed with audio packages and market. The only reliable check is to look at your own car.

Options that matter for daily use

The Garage Alpha cargo mat for subwoofer-equipped MKIV Supras comes in multiple styles and colors. Style affects the material and pattern; mat and serge color let you match or contrast your interior. The optional Supra shield adds a logo, but it also adds a raised area that can catch small items. If you regularly carry loose tools or groceries, a plain mat is easier to wipe down.

For interior care, choose a color that hides dust and road grime. Black and charcoal are forgiving. Navy shows light debris more readily. Serged borders in a contrasting color look sharp but can fray if you drag heavy cargo across them.

Install and care without damaging the subwoofer

Before installing, vacuum the trunk floor and remove any sharp objects. Lower the mat into place with the cutout aligned over the subwoofer housing. Do not force the mat; if it does not sit flat, the cutout is misaligned or you have the wrong version.

To clean, remove the mat and shake it out. Wash with mild soap and water, then let it dry completely before reinstalling. Avoid pressure-washing near the cutout edge, which can delaminate the backing. Check the subwoofer grille periodically for trapped debris.

Diagnosis: subwoofer trunk mat fitment

• Symptom: mat will not lie flat: The mat bows up over the driver-side trunk floor or slides when you turn. Likely cause: you have a subwoofer-equipped trunk but a flat mat without a cutout.
• Symptom: subwoofer grille is rubbing: You hear a buzz or see scuff marks on the speaker grille or mat backing. Corrective action: remove the flat mat and install a subwoofer-specific cargo mat. Check the grille for damage before reinstalling.
• Symptom: cutout does not line up: The mat has a cutout but it sits in the wrong place or leaves a gap. Stop and verify you ordered the correct model and side. If the cutout still misses, contact the seller; do not trim the mat, as that voids return options.

Product facts

• Toyota Supra [MKIV] Floor Mats - Cargo Mat (Subwoofer Equipped): OEM Style Cargo Mats for the Toyota Supra [MKIV] are tough to find, and this version is for subwoofer-equipped models only. If your trunk has the factory subwoofer, this is the version that will sit flat. If you need a mat without a subwoofer cutout, you must choose the non-subwoofer version instead.