inputs.text: works great 04 impala - bought use sirius sat radio sat radio output weak gm head unit via auxv2 added pie preamp [ [ asinb001ab7hxg pie ld1 adjustable preamp line driver w subsonic filter ] ] worked great year half works great cell phone well installation note probably not beginner level project disassehemble cars dash get factory radio 04 impala relatively straight forward also instructions purchased web site well worth money also 04 impala head unit part cars class 2 data bus read cars computer network true newer cars proceed caution sound much better fm adapters using sirius one worthless good one broke sound quality great aux adapter factory stereo systehem not expect high quality stereo sound mp3 player sat radio