Nakamichi EQ-Z1825 Car Audio EQ 7 Band Equalizer W/ Sub Crossover & Rear Aux In
AUX INPUT (Rear Rca). High level input allows you to add an equalaizer and amplifier to your factory sound system easily. 7 BAND EQUALIZER/PREAMP. ADD BLUETOOTH A2DP STREAMING AUDIO. Input impedance:20kOhms.