Hello all, I have a BMW E46 330ci and there a China-Pumpkin-Android radio in it, that delivers max. 4x50W. The speakers are still standard and therefore quite modest. Now my questions: 1. Are the 4x50W enough for a proper new front system or must absolutely something be hung in between? I don’t want to subwoofer back, is too impractical and large and expensive and expensive, so as I said only a good front system. 2. What can such a front system and the installation about cost (incl. cutting holes in the doors, insulating doors, installation, cable etc.)? Have no idea how much effort this is about… 3. Where should I go with it in the area of Cologne/Neuss? There are ACR Neuss, ACR Köln and “Sound & Service” in Frechen. I don’t want to do this myself because of the door story at the E46, because I have too little idea of… I hope you can help me further, the current speakers get mad at me…