Tall Paul
In your CP you will need to split your 4 in 1 to be able to use the Spektrum Radio.
Here are the pics of the inside of the 4 in 1
http://www.rfcafe.com/references/art...P%204-in-1.htm
if you look at the header on the control board you can figure out what line goes where.
Here are my settings for the Spektrum radio:
http://www.rcuniverse.com/forum/m_47...tm.htm#4795828
I have seen a set of instructions somewhere but I cant find them again
as I'm an electronics guy I can just read the circuit off the board so I did not save them.