what sort of rears are they? if they are 6.5" round speakers they will just fit in the doors (i think 6.5 fits in the rear)... if they are 6x9s, you could probably fit them in the hard part of the floating parcel shelf, but i've never tried... you might have to make some sort of MDF board to go under the parcel shelf to mount them on... if all else fails, and they are 6x9s, sell them and just run splits up front and a sub down back - way better! oh and with the spacers, you can buy a head unit set thing from toyota... its two double din sized spacers on each side, and a single din pocket... shop around for them, and try at your local strathfield or car audio install place, cos they would have a few and they are very cheap... toyota will rip you off (charged my $17 each for the spacers and $50 for othe pocket!!) alternatively, if you're in sydney and you cant find them cheap, ill sell you mine... i just pulled my aftermarket head unit out, and i have no need for my spacer set...