Go for it. Just changing speakers makes a big difference. I did it DIY recently after my warranty ended. Switching to Polkaudio speakers has improved the audio. Audiofiles will pooh pooh at it; but good enough if you are a casual listener looking for some audio improvement without tinkering with wiring. However, speaker upgrade caused quite a bit of door panel vibration. I had to dynamat the doors to control vibration. One beneficial side effect of dynamat is reduced road noise. But be ready for it - dynamat will end up becoming more expensive than speakers! It is a necessary evil because without them you cannot enjoy the speakers!!