rear windows on convertible not working. Options

[homebuilder]

Hi,

I have a 1995 conv. When I bought it I did not realize the rear windows were not working.

The previous owner swapped out the radio and the radio rear speakers are not working either. I think the amp under the driver seat is missing as well. I at least noticed unplugged wires under there.

I am about to trouble shoot. Wanted to get any advice.

I was thinking of using a voltage tester first at the switches to see if any power. Then... well not real sure. Is there a connector under the carpet for the wires?

If no power, any suggestions on how to wire up something from the battery just to test if the window motors work before taking them all apart?

I have read that the windows can be a pain since they were an aftermarket creation.