B4M

AcronymDefinition
B4MBleeding 4 Metal (website)
References in periodicals archive ?
The control panel is required, including sheet metal frame standard car radios to fit into DIN compartment and instructions for installation in vehicles equipped Radioblok type B4M.
The control panel is required plate frame including standard radios for attachment to DIN compartment and instructions for installation in vehicles equipped Radioblok type B4M.