I am asking for your advice before I make a mistake. I don't know anything about car audio.
I changed factory front speakers to Alpine 501 Coaxial speakers (Alpine's entry level speakers) and Head Unit to a double din Kenwood DPX308U but still cannot get sound quality as good as my 2004 Dodge Caravan with its stock unit. An audio installer in Brampton suggested that I put a 4 channel amplifier and upgrade the speakers. He said Caravan has a factory amp and that is why it sounds better. The options I considered are:
1) Put the Alpine speakers to rear and put new better speakers to front. I don't know which speaker to put but some one suggested Kenwood KFC-P680C (6" woofer and 3/4" swivel tweeter mounted on to a plate) . Cost: $250 installed.
2) Add a amplifier. Cost: $400 installed.
I have a limited budget. Any suggestions regarding speakers or what to do?