Krell KAV-500 Bridging Jumpers?


Has anyone bridged a Krell KAV-500? I can't find bridging jumpers. I'm thinking they are just flat ribbon cables with IDC sockets on the ends that pug into J4 & J5 bridging pins on the amplifier boards. If that is the case then I can build them. Can anyone verify this for me or send me a picture of the jumpers? 
128x128kevscomps