Hi guys im new to this forum i have some questions i need some help i recently installed a jvc head unit on my scion xb(dnt have much experience on installing car audio) and i installed a amp not so known brand and a jl audio 12 inch w0 subwoofer in its jl audio box . I like to listen to mostly spanish music but get no bass from it so im gonna purchase an epicenter but dnt have a clue on how to install it so i get the part where i hook up the power of the epicenter to my deck and the ground to my deck also and the blue remote cable now the part that i dnt understand is that the epicenter has a conection for two sets of rca's and my amp has two sets also but i hooked up one set of rca to my head unit so how do i hook up the epicemter to the head unit of the rcas or how do install it im sry im new and this might seem kinda of stupid i apreciate ur guys help