[quote name="03Aviator"]Duke...now I'm confused. I have an Aviator with one sub amp...and it is indeed enclosed in the entire sub unit like yours. Now, and this is totally from memory mind you...my Z1 only has one sub turn on lead. It also has an antenna turn on lead for the antenna amp or power antenna...but I remember only ONE lead for the amp turn on and that is the one you put your 5v regulator into. Now, the Z1 has TWO RCA leads out of it for the sub amp. One is left and one is right. However, since it's a mono signal, you can use just one. Just for grins and giggles, I had a two i