Hey I'm currently doing the same thing in my '95, replacing all the stock speakers and adding a subwoofer. What year is your 4runner? However, I'm using different brands. (Focal 4" fronts, Boston 5.25" rears, Focal 27v2 11" subwoofer, Dynaudio 3" rear tweeters, and JL Audio A1400 subwoofer amp...