I have just replaced the front door and rear speakers on my 97 marquis, I have the cassette player original stock radio for this car in place, the speakers make a difference, but I wanted to know what the watts rating of the stock radio is, considering adding a new head unit radio something that is 20 watts RMS / 50 watts max, just wondering how much more of a punch it would be with my new speakers vs the stock radios output power.