Thanks for the comments euro_tr4sh.

Yeah, i'm not sure what to do at the back. Another option is to d/c the 6x9's and wire in another set of splits in the rear doors. At this stage boot space is pretty important, so i'm going to leave the sub for a bit.

I want to leave the car looking as stock as possible. Today I pulled out a tweeter lid and measured the stock tweeter, 40mm by the looks of it. The Pro60's come with 45mm tweeters, bugger! I might still be able to fit them under the lid though.

Also, check out http://www.millionbuy.com/aihsb518.html and http://tsx.acurazine.com/forums/showthread.php?t=28846. I'm going to use these in the doors, but the Pro60's need 65mm of clearence, so I might need to space them out even more. I haven't pulled a door panel off yet, do you know how much room there is between the speaker and panel (>20mm?).

S.