Race car dual radio harness, from a NASCAR sprint cup car...   good for any dual radio needs, has the connections to be able to hook up to a helmet earpiece and a steering wheel PTT..  4 Conductor style (IMSA) wiring dual radio car harness. Place two handheld radios in your car and switch to your backup radio whenever you need it. Compatible with Motorola two-prong style radios such as CP200, BPR40, P1225, PR400 and GP300.