Installing Subs in a 2009 yaris HELP

[Zombie Yaris]

Thanks S7V7N, You've been a big help. I managed to finish it but the line out converter is hooked up weird and not really hooked up at all i bought 2 because the first failed to work. I'll try to put a picture up soon of how it's hooked up maybe some one can tell if it's safe or how else to hook it up. For power i added a switch to my remote wire, drilled a hole in my mini glove box to insert switch into then ran a ground to back to ground it because switch is lighted. As for Djct Watt not only are you useless for help i already said i got the amp wiring thread from here already and its not for my year of car i know the basics i'm not a dumb ass. I just couldn't find where it showed how to insert a line output converter. Probably because it didn't show how. Some people just talked briefly about it nothing with where wires go or nothing. No where else online could i find it either.