Toyota Bass Knob Mounting Adapter - 2003 - 2008 4Runner & 2016 - 2024 Tacoma

Toyota Bass Knob Mounting Adapter - 4Runner & Tacoma

You've upgraded your sound system. Now make it look like it belongs there.

You know that feeling when you finally dial in your system—new amp, new subs, everything's hitting just right. But then you look down at that bass knob zip-tied to the side of your dash or dangling from a wire, and it just... doesn't fit. Your vehicle deserves better than that.

That's exactly why we created the TYSB-L (Toyota Switch Blank) adapter.

See those blank switch panels in your dash? The ones Toyota left for features you probably didn't order? One of those spots is now your bass control's new home. Pop out the blank, snap in this adapter with your existing bass knob electronics, and suddenly it looks like it rolled off the assembly line that way. No one will know it wasn't factory—until they see you adjusting your bass on the fly.

Here's what makes it work:

Most aftermarket bass control knobs come in their own plastic housing that you stick somewhere on your dash. Simply remove the potentiometer from that housing and mount it directly to this adapter in your factory switch panel. You keep the knob you already have, wire it the same way to your amp's remote bass input, and you're done. The whole install takes about 10 minutes, and you won't cut, drill, or modify a single thing permanently.

Fits like it was meant to be there:

•  2003-2008 Toyota 4Runner
•  2016-2024 Toyota Tacoma

What you're getting: Just the mounting adapter—works with most aftermarket bass control knobs. Remove the electronics from your existing bass knob housing and mount them here for that clean, integrated look.

Why you'll love it:

No more adhesive mounts failing in the summer heat. No more plastic housings stuck to your dash. Just clean, functional, factory-integrated bass control right where your hand naturally falls.

Your truck, your system, your way—but looking like Toyota planned it from day one.