MadisonTLS

Have read through the posts regarding the different upgrades people have done to their Bose systems. In my last car (95 maxima) I ripped out the Bose system and installed Nakamichi head and changer, a SoundStream amp, Boston crossover and speaks and a JL sub. It was a great system but expensive. I like the sound of keeping the existing Bose equipment in my 03TLS and adding to it using the audiolink products. Any recommendations for adding bass and volume for under $1000? Anyone not happy with Audiolink gear? Thanks.