I have not been able to determine the wattage per speaker but i figure them to be know more than a hundred. the door speakers and subs are 6 1/2. getting to the sub was not really a problem but be careful about lifting the seal over the back window the plastic inserts are in very secure after inspection i saw that LIFTING IT UP closest to the (3) star screws is the safest way the greatest help to all would be to download the service manual unfortunately I dont remember it's address but I found it out through this forum and after searching I've also determined that installing a seperate audio video system including wiring is what im going to do that way I can upgrade as i want .