G'day.
  Now before I begin.....I have had a few people tell me
1. "Dont mod it, its a discontinued Signature amp   or  
2. "its not worth it, get a bigger & better amp"

-->1.  I dont care, I love modding ALL my gear
-->2.  I already have a Marshall EL34 50/50 with JMP1 & JFX,
& GX700 with Boss EQ all rack mounted, & An Ashdown UK made Fallen Angel.
(all Modded & Hot-Rodded of course...except the JFX) So I got that covered.

So, that said....what I am wanting is a single footswitch wired into the MSZW Mini Marshall Stack Head (a "Pretty" MG15 I believe...)
I want to be able to switch channels with a little footswitch....simple, I hope
 Anyone done this or know how to?

Schemtaic for MG15    -->   http://www.sikaudio.com/images/marshall_mg15_schematic.jpg   

 Cheers in advance for any help.
Nath