well i think the second option ( http://www.zzperformance.com/grand_p...=809&catid=108) is similar to the piece guy told me about but it looks a little different, but yes it does what he described.. so what i need to know is DO I NEED THIS ??
i am in stalling a Kenwood eXcelon KDC-X791 deck and i would be replacing the speakers with JBL GTO series a pair of 5 1/4's and 5x7's also 1" tweets so to have all of this hooked up would be very nice and very loud!! so if anyone has a better idea of what it is now plz let me know about this unknown part that is needed or not needed thx alot!!