Pyramid 10 BAND EQ 300 W WITH LIGHTS Car Equalizer "volume pyramids" Questions

Pyramid SE403G no volume lights I have just bought a Pyramid SE403G to replace a classic car stereo. Im plugin in a portable mp3 player directly to the input of the equalizer and the speakers directly

me they are going to work.Remember if the outputs from your CD player are of high note (out put)the volume should be kept at minimal to avoid the rumble