Whoa! Hold on there guys!! It is entirely possible for him to have the monsoon system. '97 and early '98 model Camaro's Monsoon head units simply said "Delco Electronics" just like the non-Monsoon systems. Check your door codes to find out if you have the Monsoon system:

ULO = Monsoon Cassette HU

UNO = Monsoon CD HU

U1S = 12 disc changer

And yes, you can swap out the monsoon headunit for an aftermarket headunit with NO odd modifications. So it's quite possible Circuit City didn't even notice you had the monsoon system. If all else fails, look for the amp! It's a small black box very close to the spare tire. Next, I agree with 97Formula. Disconnect the rear 4"s all together. And I'd just do the install yourself. Running the wires is the hardest part but not even worth $20 to me. Power your new speakers directly off your aftermarket headunit until your can afford to amp them. Wait until you are ready to install the sub/amp as well. Then just set aside a day and install it all at once.

 

Yup UL0 is on my door, so the monsoon cassette system is what I had. Haven't checked the back to see if the amp is there.

Yeah I was just going to have the front speakers installed cause I'm tired of hearing the blown speaker I have a cousin that is real good at installing car systems, building sub boxes etc. So he's helping me install and build the sub/amp. I didn't want to bother him with the door speakers. Well maybe I will now

Thanks for that bit of info. I had been wanting to know if I had it or not.