I had a bit of an issue with the foam too. I had to move some of the looms a bit, and then mount each screw and take turns tightening them up slowly. I'm sure the foam will compress just fine in those areas of interference.
Fwiw, the speakers are much better than the stockers. I guess I was expecting a little more, but it's definitely a step up. I think I read a few comments here and elsewhere in that you can pretty much crank these things without any distortion. That is absolutely not the case. Even with a CD, instead of the iPod, at anything over 50% they start distorting noticably, and the sound degrades quickly. Granted, the loudness at this 50% is much higher by perhaps 25% over where the stocker break up, with better highs, and somewhat lower lows. I actually thought the rear speakers improved more so than the fronts? I suspect the 250w amp would help some, but I'm just scratching my head that it's only a 2 channel amp for a 4 channel set up? I think I'll wait to upgrade the amp until they come out with a 4ch version.