Hi; I want some help regarding alpine 3341 EQ. (got a 25Wx4 7524JS Alpine HeadUnit with it) it has Disp-0 to disp-9 styles of graphics that can be played,these graphic patterns dont get played untill i turn the vloume close to full. on ly disp-8 which is a horizontal red line works fine under sound of normal intensity, all other modes show their graphics popping up on high volume only,....... can any one help as to whether there is any misconfiguration in assembling this or is it meant this way, or is there any other way to fix it,.... Many thanks.