Sky High Car Audio SH-HL2 2-Channel Hi-Lo Converter The Sky High Car Audio SH-HL2 makes it easy to integrate an aftermarket audio system with your factory radio. This 2-channel Hi-Lo converter takes the speaker-level outputs from your stock head unit and converts them into clean RCA preamp outputs, allowing you to connect amplifiers without replacing your factory stereo. Built with high-quality components and durable wiring, the SH-HL2 ensures a noise-free signal path and reliable performance. Whether you're doing your first system upgrade or a professional installation, this converter gives you a seamless way to add subwoofers or aftermarket amps to your vehicle while keeping your stock head unit in place. SH-HL2 Channels Supported: 2 Wire Gauge (recommended):16 AWG Input Type: Speaker-level (factory radio) Output Type: RCA (preamp level) Remote Bass Control: No Application: Add aftermarket amps/subs to stock radios