Can any one let me know the speaker size for Palio 1.9D, I mean speakers size used in front doors and rear shelf. I would like to add speakers to rear door too, is it possible. Any suggestions for speaker set up in palio with out loosing the boot space, I would like to add Subwoofer too. I heard flat subwoofer can be placed under rear seat, is it possible. Thank you in advance.:idea::idea::idea::idea::idea: