Hi Tom and list;
I believe wires four and five are reversed for the ts480.  I have heard rf 
complaints concerning the mc60 and wonder what else works well.
As for the 480, I have generally purchased new radios and had the seller 
install voice board and filters.  Lazy I admit it.  I have seen a few ts480s 
used and wonder how much of a pain filter and speech installation is?  Most 
used ones are just the radios no filters and no speech.
Richard