Is there anyone who makes and sells that 13 pin connectors ?
The radio comes with them when you buy it or you can get them from Ebay if you got a used one that didn't. You just solder plugs on the end of the required wires. If your connector doesn't come with wires connected, use shielded multicore cable.
Whilst you do find pre-made ones they tend to be only wired to run the ALC and PTT for an amp. Its a technical hobby, get your soldering iron out.