Guys i ve bought 2001 vitz few days ago it has an ALMANI amplifier of 600 watts and a pair of 718 speakers.I dont know much abt car audio and i want to install a decent woofer in it my budget is 3k.I live in islamabad so tell abt some good audio shop and can a woofer be installed in that amplifer.Waiting for your replies.....Thanx