I've been messing around with different ways to control the windows and convertible top.
Here's what I ended up with.
Just thought I'd post it here to allow ya'll to tell me what a bad idea it is!

 

Front and rear will go up and down at a different rate so if you only want your door windows down a little prepare for the rears to go right down. Same with up. Also you will be maintaining stall current through the rear motors while the fronts are continuing to move, not sure what that will do to rear motor reliability.

 

Good points. I didn't think about that.
I'll take your advice and put the rears on their own switches.
Thanks.