Ok I have a Bose Factory System in my 99 Maxima. To my knowledge the speakers are independently amped.I did a little research and discovered I needed a Hi/Low converter so I went and bought one (cheap).I already own subs. Today I picked up a Kole Audio amp with a Hi-Input. Sense my amp has Hi Inputs would using a Hi/Low converter be unnecessary? I definitely want to get the best sound out of my low budget setup. I plan on Installing tomorrow afternoon. Thanks in advance.