The MOTOR-1A radio has a FM/AM tuner, multi-color illumination, AUX input (3.5mm jack) and 4x 18 watts output power.
The MOTOR-1DAB radio has a DAB+/RDS/FM/AM radio tuner, AUX input (3.5mm jack) and 4x 18 watts output power.
The top radio is the MOTOR-7. All features of the "MOTOR-1DAB" plus USB-input, A2DP Bluetooth audio and handfree, four RCA outputs for amplifiers.
The flagship radio is the San Diego. All features as the "MOTOR-7" plus a Apple iPhone and two USB inputs and subwoofer RCA output and more.