Unfortunately I couldn't get the Bose system with my new 02 A4 1.8T. It was the only option the car didn't have. Anyways does anyone know how to make the stock system more powerful? 150 watts isn't that bad but I miss the 200 watt monsoon system I had in my VW. Then again the GTI was a smaller car so maybe it just sounded louder in that car. I mean is 50 watts that much of a noticable difference? Anyways I know for other systems there is some plug and play stuff available. If anyone has any info I would appreciate it. thanks!