4 Conductor (IMSA) wiring in-car radio harness for Motorola mobile radios. Plugs directly into the REAR 16-pin accessory jack on Motorola mobile radios. Compatible with CM200, CM300, CM200D, CM300D, PM400, M1225 and CDM mobile radios.
This harness uses the standard IMSA helmet cord receptacle.
The unterminated red wire can be connected to your vehicles ignition or accessory switch to automatically turn the radio on and off. If left unconnected the radio will power up whenever voltage is present on the main power cable (battery on.)