[ICOM] 746 acc plug

[Greenacres113 at aol.com]

I am the recent owner of a 746 [non pro]. I want to get  it conn. to my 
SB220. I have an Ampkeyer I used with my old Yaesu.I don't see  the plug that fits 
those 2 acc. sockets listed anywhere as acces. or coming with  the radio.I 
asked my friend who sold me the radio if he has one,but he hasn't  found one 
yet.Anyone tell me if those were Icom issue or just generic 8 pin  plugs. Also, 
where i can get one in either case.
 
tnx Bob K9IL