freshman installing an amp, need help please!, how to run the main power wire from the battery to the cabin? Options

[xkillerx]

hello people!

about a month ago i FINALLY became an owner of a 6th geni celica - after many years of craving for one. much of the SQ audio system i had in my ex-corolla is now waiting for an installation. i was looking today for some kind of hole i could use to put in the 10mm2 (awg 1 or 0 i guess) power wire (from the battery to the cabin) but couldnt find anything

i'm running a 97 ST with air conditioning, abs and all the good stuff.

also i'll probably be getting new speakers for my car. bare in mind, GOOD speakers are a NIGHTMARE to buy here (and i pretty much CANT order stuff from the net). the choice comes down to three contenders: jbl gto6507c OR apline type S 171A or ground zero hydrogen 17cm components (a completely unknown yet quite expensive german brand). i believe the JBL component system should sound the best and cost the least, but i'm waiting for feedback from all you car audio enthusiasts (i know there's a whole bunch of you here! ) for the speaker brand decision (and please, please dont recommend stuff i cant get. trust me if i could i'd get polk's or mb quart's or infinity's but they are NOT an option in this $h17hole country )