Square Style Bass Knob Switch Blank Mount
Warranty Information
Vendor warranty summary
Trail Grid Pro Warranty
At a glance: 1- or 3-year limited warranty on most products (unless the maker specifies otherwise)
This is Trail Grid Pro's warranty, not an NVMOS policy. We've summarized it in plain English to save you a search. The manufacturer's official terms always govern and can change without notice. Last reviewed on nvmos.com: October 4, 2026.
Coverage by product
| Product or component | Coverage |
|---|---|
| Most products | 1 or 3 years limited (varies; manufacturer's terms apply where specified) |
| Returns, any reason | 30 days from shipment |
What's covered
- Defective or damaged items under warranty
- Only the specific defective component is replaced
What's not covered
- Cut, spliced or modified wiring
- Improper or third-party installation
- Physical damage such as scratches, dents or drops
- Damaged or punctured speakers
- Misuse or abuse
- Attempts to bypass parking-brake lockouts on Alpine units
How to make a Trail Grid Pro warranty claim
- Log into your Trail Grid Pro account and start a request in the self-service returns portal
- Inspection takes about 2-4 business days
- Contact technical support with questions
Trail Grid Pro contact: Phone: 301.835.9100 · Claim page / support
Bought it from NVMOS? Start with us.
Have your order number and a few photos of the issue ready, then call real humans at (920) 249-7744 or send us a message. We'll tell you whether the claim goes through us or straight to Trail Grid Pro, and help it along either way.
Shop Trail Grid Pro at NVMOS
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See all Trail Grid Pro products, lead times and FAQs →
Disclaimer: The information on this page describes Trail Grid Pro's own warranty policy. It is not a warranty offered by NVMOS (No Visible Means of Support LLC). Manufacturers update their terms at any time; we review these pages periodically, but the manufacturer's current official policy is the one that applies to your claim. Source: Trail Grid Pro official warranty information. Last updated on nvmos.com: October 4, 2026. See our return policy for NVMOS's own terms.
About the brand
Trail Grid Pro is a Toyota-focused parts company in Frederick, Maryland, known for plug-and-play audio upgrades. NVMOS carries its speaker bundles, subwoofer enclosures, amp bypass harnesses, camera kits and brackets for 4Runner, Tacoma, Tundra and Land Cruiser owners who want better sound without cutting factory wiring.
Based in: Frederick, Maryland · Founded: 2021 · Made in: Assembled to order in Maryland · Lead time: Assembled to order; see product page
Shop all 65 Trail Grid ProWarrantyAll brands
Warranty terms are set by Trail Grid Pro, not NVMOS, and can change. Bought from us? Call (920) 249-7744 and we'll handle the claim with the brand.
Square Style Bass Knob Switch Blank Mount
Clean up your interior setup with this Square Style Bass Knob Switch Blank Mount designed to give your controls a more finished, factory-friendly look.
Installation Video Clean up your interior and mount your bass knob the right way with the Trail Grid Pro Square Bass Knob Switch Blank Mount.
Key Features
- Designed around 6.5-inch speaker compatibility
- This keeps your installation secure, accessible, and visually factory-correct while preserving the clean look of your interior.
- This mount is specifically designed for use with the AudX bass knob included with Trail Grid Pro Kicker and Alpine amplifier kits.
- For proper installation, the outer housing of the bass knob must be removed so the knob can be mounted correctly inside the switch blank.
- Once installed, the result is a professional, factory-style appearance with easy access to bass control.
- Whether you’re dialing in subwoofer output on the trail or fine-tuning bass on the highway, your bass control stays exactly where you want it.
Why Choose This Product
Small finishing touches can make a big difference. This mount helps clean up your interior and gives your controls a more intentional placement.
Perfect For
Perfect for compatible vehicles owners who want a cleaner install, dependable fitment, and a more finished upgrade.
Product Details
Product: Square Style Bass Knob Switch Blank Mount
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