well im trying to improve the sound quality in a cheaper manner. isnt it difficult to replace the factory radio because of all the information that goes to it? i figured it would be easier and cheaper to get a processor, so that the sound quality improves, but the information is still in the stereo. if i change the radio, dont i need to buy something that keeps the information, and then a new radio also? my entire plan, as of now, is to buy new speakers, a processor, an amp, and a sub. thats why i was asking about the five channel amps.