Hi-Level Inputs (Signal Sensing Power On)
There's nothing better than adding an amplifier to a vehicle's factory system for an initial upgrade. To make it as simple as possible, all Sony GTR amps include a hi-level input with signal sensing circuitry, which acts as a remote turn-on for the amplifier. This speaker-level connection can take the audio signal that normally drives the factory speakers, and use it as the input to the Sony amplifier and as a turn-on lead. No extra wiring required!
