Kindly delete if repost..
Car: Civic 09 VTiL
Turn on the ignition key (stereo in off mode)
Press No.6, No4 and ON(Stereo ON/OFF switch) at the same time
DIAG will appear on the display
Press No4 again
(DSP will appear on the display)
Turn Off the stereo
Turn ON the stereo..
you can hear a big difference from the stock mode...more BASSS
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