Find any Amazon.com product's deals and best prices with our free Amazon deal finder and price tracker. Simply paste the product link (URL) or search by name in the box above. You'll get full product information, Deal Score, and all current deals. Shop smarter with the best Amazon deals finder in the USA.
x
Sorry, Something went wrong!
Axxess Subwoofer Interface w/Bass Knob & Vehicle T-Harness for GM 2019+
✅ In stock
F
Grade
Analysis Confidence
100%
⚠️ Price may have changed. Last updated 24+ hours ago — confirm on Amazon.
Check Deal at Amazon
Price verified Sep 4, 2026 9:40 AM · Prices & availability subject to change
Is This a Good Price on Amazon?
💤 Not a Deal- 💤Verdict: Not a Deal. Price is at or above historical norms. Best to wait for a sale.
- 💰The current price is slightly above the going rate for this product — worth watching for a drop.
- 🏷️The retail sticker price has been slashed by 73% — a steep markdown from the official listing.
- 📉Pricing has not dipped this low in roughly six months, placing this offer among the better deals in that window.
- ➡️Pricing has held fairly steady, with no strong push in either direction.
How We Scored This Deal
Price Competitiveness
0/28
Recent Value
1.91/22
Market Standing
2.96/20
Deal Strength
10/20
Momentum
4/10
📝 Product Overview
🏪 Sold by
Mega Big Box
🚚 Shipping
Free Shipping
Product Details
✓VEHICLE COMPATIBILITY: Designed specifically for GM vehicles 2019 and newer, this subwoofer interface seamlessly integrates aftermarket amplifiers with factory audio systems.
✓COMPLETE INSTALLATION KIT: Includes all necessary harnesses, connectors, and mounting hardware for straightforward installation without cutting factory wires.
✓SIGNAL INTEGRATION: Converts factory speaker-level outputs to RCA line-level signals, providing clean audio input for aftermarket subwoofer amplifiers.
✓COMPACT DESIGN: Measures 3 inches in length, 6 inches in width, and 8.2 inches in height, allowing for flexible mounting locations within the vehicle.
✓PLUG-AND-PLAY SETUP: Features vehicle-specific connectors that interface directly with factory wiring harnesses for quick and reliable installation.
⚙️ Specifications
Brand
Axxess
Material
Copper, Polyvinyl Chloride (PVC)
Item Weight
0.85 Pounds
Connector Type
Oem Connectors, Rca Connectors, Wiring Harness Connectors
Manufacturer
Axxess Integrate by Metra(TM)
UPC
086429435289
Model
Axsub-gm4
Package Dimensions
7.5 x 6 x 3 inches
Item model number
Axsub-gm4
Manufacturer Part Number
AXSUBGM4
ASIN
B0D3JB7V35