ohm rating should be fine as they are the speakers that have been constantly recommended on here, maybe i got the polarity backwards , but i highly doubt that , as far as wattage i dont see how that would be too much of an issue but i am sure i could be wrong! they are kappa perfecdts 62.9i are these not good for my stock stereo?

these are true 4 ohm , but i think they are supposed to do 2 ohm as well for our cars?