deck doesent have anything to do with the amp. Just make sure it has 2 RCA outputs and a rem wire that you can use to go from the deck to the amplifyer. For under 200$ is kinda hard to work with for the 2 12" atlas. I personaly own 2 and run a PG 600rms/1 channel amp and it pounds them to their max. It cost me 300$ american. Thats probobly your best bet. Dont go with half /a$$ed stuff
PG? not really.. u usally find it for around 300-350 on most sites. Try ebay. Thay always have stuff haha. :P. And if your head unit is anything but a stock installed HU from when u bought the car. Then you will be fine. Aslong as its an after market HU ur in the clear