GSN6059 - 13 Watt External Speaker

Motorola GSN6059 - Meant to be mounted externally for use with two way radios, this speaker is a vehicular adapter used to detect the chemistry of a portable battery and select the optimum charging method while providing power for in-vehicle radio use. Compatible with the HT1250 and HT1550, along with the MTX series of two way radios.
HSN1006 - External Car Speaker Kit

Motorola HSN1006 - Perfect for added listening in noisy work environments, this external car speaker kit is made to work with two way radios. This is a replacement for the discontinued Motorola HSN1000B. Compatible with the CM200, CM200D, CM300 and CM300D radios, along with CDM and EM/PRO series two way radios.