ok so your rear deck is going to have to come off.
1. you have to put down both seats
2. you should see about 6 little plastic screw like pieces you pop out the inner part of them and then pull out the rest of the piece
then go in your truck and look up and you should see 3 Orange clips and squeeze them with pliers then go ahead and pull up on your rear deck and pull toward the front of the car and it should come out but be careful as the rear brake light will have a plug in it and you need to make sure you unplug it or you could damage your wiring harness
then you should see your speakers with 4 screws unscrew them and then they come out you have to disconnect your speakers wires and then put in your new speakers and cut the speakers wire and solder on your new speakers.
Front: 6x8x2.5" Rear: 6x8x2"
6x8 in the front depth 3.75 6x9 in the rear depth 4
Que son los glóbulos rojos alto
1993 protege has it in tank uder rear seat. do not need to drop tank.
6.5 or 6 1/2 in front and 6 x 9 speakers in back.
I believe if you check the Crutchfield web site you'll find fronts are 6x8, rear deck 6x9, and rear are not a standard size but are closest to 5-1/4. I'm not sure if all models have 6 speakers. My LX does.
The rear disc break pistons on Mazda are not to be pushed in. Instead you turn them in clockwise.
crawl under your car and look in the rear of the engine.
Look at the rear or side of the oil pan
You Tube "Happywrenching.com". Incredible video on how to change rear drum brakes on a 99-03 Protege. Did the entire brake job myself! :)
In Haynes workshop manual.
Front 5.25" @ 1.75" * Rear 5.25" @ Over 8"