Pair of DB9 m/f connectors and 2 Hoods (note you need one per Pi/UDRC unless you want different cable lengths between the UDRC and DB9 end) $1.25 *
DB9 Male + hood (note: this is to go from the adapter cable above to other radios, ie if you have 3 radios you want to be able to connect to choose 1 for the pair of DB9 m/f connectors and 2 for this) $0.75 *
Baofeng UV5R speaker/mic cable (coiled version) - note this might work with Kenwood and other radios that can use a UV5R speaker mic *