inputs.text: much better expected fabulous sound - installed 2007 subaru wrx sti feeding alpine cda9886 first disappointed reception horrible even decent sized city got one station hd didnt realize using hd tuner 9886 disabled analog tuners power turnon amplified inglass antenna subaru hooked blue wire tua550hd harness factory harness pin 14 subarus feeding antenna amp airwaves literally came alive glorious sound get even stations analog side receiving couple dozen strong hd signals subchannels options huge sound improvement reminds first time heard compact disc living years cassette tapes 8tracks showing age music rich full range smooth tinniness previous xm tuner gathering dust bad memory