what are the suzes un the 06 ss dor speakers front and rear also would i need a amp for them for better noise or tie in to stick wires

 

door speakers are 6.5" and rear are 6x9s.. you can tie them into stock wires and would sound great over stock speakers... but you wouldnt be getting your full potential without a sub.. i just put a factory SS pioneer sub in my car powered by the factory amp, total cost for sub, sub box and amp was $75 shipped.. the amp is also wired to power the front and rear speakers as well as the sub.. if you go this route i could help you with which wires go where. you can get a stock amp for around $40.... unless you're going with high output speakers the stock ss amp, in my opinion, is a good way to go