If anyone has any tips for de-Bosing this car I would much appreciate it. My friend just got the car and I went over for a peek. As usual, overbuilt Caddy with things that just don't need to be there, mainly lots of extra plastic. The bose speakers are built into plastic looking pods, we measured the front door speakers at 4.5 inches though 5.25's look very doable and 6.5's with some work. I only popped off the grill cover and have yet to see the entire door. When I checked crutchfield it didn't give info for dash mount size or speaker sizes which is mainly why I'm asking.

Thanks in advance