Just got some alpine type R 6 1/2"s component speakers installed. Had to do a bit more hacking then you did. I also had to take the 6x8 plastic adapters that came with the new speakers and some 1/4" plywood to make a new mounting brackets. I couldn't use any of the bracket that held the 4" speakers. I also had a TI with the 10 speaker setup so I was able to mount the new tweater in the stock location.
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