I just got 2 6x9s i wount have to cut a hole to put them in my cobalt would i?this is what they are

Question

http://www.sonicelectronix.com/item_8796_Lightning Audio Strike S4.69.3.html

Answer 1

Your vehicle is equipped with 6x9" speakers in the rear deck, so you shouldn't have to cut anything (unless you're trying to put them in the doors).

Answer 2

just change the stock one and put them in  

Answer 3

go to metraonline.com and find out then go to a car stereo place and have them installed professionally