ALLOR152: I'm going more for SQ, SPL does nothing for me. Door removal: under the door handle (champagne bits) there are 2 screws and under the door handle, there is a plastic cover with one screw under it. Remove all 3 screws and then peel the top part of the tirm off till it clicks out. Then using a softish plastic tool (so you don't scratch panels), run the tool between the trim and the metal door carefully. Everything will slowly pop out and the trim will come off. Laos, make sure you unplug all the switches first! Aucix: As I mentioned before, I'm not going to recommend any particular brand, it all comes down to what you like the sound of and your budget. That said, I do have a mate that has a fully alpine setup and it doesn't pretty good. He wasn't wasn't going for HQ audio, just something better than stock with a good range of features and well priced