Features:

Q&A:
Q1: will this work with my factory car stereo that doesn't have line level outputs?
A1: yes! That's exactly what this converter is for. It connects to your factory speaker wires and converts the high level signal into low level audio outputs, allowing you to easily add an aftermarket amplifier or subwoofer.

Q2: does it include a bass control knob and cable?
A2: yes, it comes with a remote bass control knob and a 16 foot cable. You can mount the knob near the driver's seat to easily adjust the bass level without accessing the amplifier directly.

Q3: how do I install it? Is it plug and play?
A3: installation is simple. Connect the converter between your speaker wires and your amplifier's audio input ports. Use the included double sided adhesive pad or mounting screws to secure it in place. No complex rewiring required.

Specifications:
Color: black
Converter size: 2.36 x 2.17 x 1.1 Inch
Bass knob size: 2.17 x 1.97 x 0.98 Inch
Extension cable size: 16 ft

Package includes:
1 X 2 Channel Line Output Converter
1 x Remote Bass Volume Control Knob
1 x Connection Cable
2 x Mounting Screws, 2 x Double Sided Adhesive Pad

Notes:
Manual measurement, please allow slight errors on size.
The remote control knob is only compatible with 3.5mm amplifiers.
The color may exist a slight difference due to different screen displays
Winding risk may exist, please keep our product away from children