Hey! i am kinda new at the whole car adio deal. i just purchased a new set up for my 2000 Mazda Protoge i bought an Alpine cde9843 head unit, a pair of 6x9 Alpine SPR 69LP an Alpine Mrp M350 mono Amp, an Alpine Tye E SWE-1042 10" 4 ohm component subwoofer in a Q Logic QLH-10S75 with internal volume: .75 cubic feet i have it all installed my head unit, amp, sub,6x9's and amp. i dont have my 6x9 amplified though because my brother in law that installed then said not to because i would loose power to the sub and that i might risk blowing up the 6x9. i am pleased but i was wondering if there is an ideal setup for my setup? i basically have everything in the standard mode. i have not messed with anything because i dont know what i am doing please help! i would really appreciate it