celicas only have 6.5's. you mite have the premium sound system with 8 speakers. The celica speakers are decent IMO
yes, you don't have 6X9's...all 6 of your speakers are 6.5"s and then you have 2 tweeters on the front doors.
as opposed to the gt which has 4 6.5" speakers.
i think my gts sound system is pretty good..for stock.