skond x'tifhem biha no fancy prices!
The Focals Jomor is mentioning.. the Polyglass 165 V2 costs Lm108 (with discount) and the Access ones should cost about lm80 - lm90.
i would get the polyglass if i were you. they have a better midrange driver.
re no drilling no modification... all you have to do is to get a speaker adaptor for the speakers, i.e. a "spacer" to make the speaker fit, since the stock speakers have the spacer built-in as part of the speaker. when i tried to buy them in malta no-one had
so i had to make my own out of MDF wood..
the speakers i have right now are Focal 165CA .. they are coaxial Access speakers (the very basic focals).. i get them real cheap 2nd hand ... tkunx qammiel bhali
when fitting the speakers its also very important to use sound-deadening material on the door. if you don't, the whole door card will rattle and also you will lose all the bass that the focals produce. it should look something like this.. http://www.alfa145.com/upload/dynamat.jpg
Dynamat Original in malta costs about Lm27, and Dynamat Xtreme costs lm40.
Oh, and you will also need an amp to power them up with. its just a shame to buy such nice speakers to power them with a 4x45w head unit
you need at least something like 50w rms per channel.. the more the better.
hope this helps
PS: Jomor of course is 100% right, forget the rear speakers, focus on the front ones. and set the fader to +5 or similar.. unless u have rear passengers.. you just don't need them.