I swapped out the front 2 easily... But ran into some complications after hooking up one of the rear speakers. after hooking it up.. i turned on the radio to find that none of my speakers worked!. Just wondering if anyone with more experience knows what the problem could be.. Just watched a video on youtube that said the car could be protecting itself from a bad speaker? I dont know if thats the case.. Supposed i could try the other one in that spot tomorrow. But i would just like to know some other possibilities to this problem. Not enough power maybe?