the thing i like about having an AUX-in is that i can probably save a bundle on the HU i'm buying -- it doesn't have to be MP3 capable, it just needs an HU. ung perang natipid, ipambili mo na lang ng matinong portable mp3 player
yes you might save a lot, but the sound quality or the output of the said HU is not as good as compared to branded ones. you will end up installing better amplifiers and speakers to compensate and still not up to par with branded HU, in the long run you spend more.