Hi guys, great forum....love the posts....I have a '04 325i sedan and as we all know the stereo sucks...I bought an Audiobahn Bass Tube which really sounds good. But you know with the sound insualtion in the BMW, its making it hard.....I have removed the ski panel thats in place and the insulation and foam that covers it but still not getting the full effect. Thinking about removing rear speakers as use speaker holes as ports....My question is "how do i get to the rear speakers"? I've had the rear seat completely out but had a incredible hard time trying to remove things near speakers....Any info would help, and a step by step do it yourself would be great...Thanks again......BMW Rules