Patent ID: 6950525

Claim:
A system that determines the presence of an audio speaker connected to an audio generating component that can receive radio signals in a vehicle, the system comprising: a computer having a memory and a microprocessor; a display connected to the computer; a signal processor that outputs a frequency sweep in response to a request from the computer; a radio frequency generator that is controlled by the computer, whereby said radio frequency generator receives operating instructions from the computer and receives the frequency sweep from the signal processor an outputs an audio broadcast signal; at least two audio speakers; and a cable that receives the audio broadcast signal at a receive end and carries the audio broadcast signal to an output end, said output end removably connected to the audio generating component, whereby the audio generating component receives the audio broadcast signal from the output end of the cable and outputs the received signal to the at least two audio speakers and wherein each of the at least two audio speakers outputs the received signal and collectively emits at least two concurrent audio signals, respectively; a microphone placed in the vehicle and connected to the signal processor that detects the emitted audio signals, said signal processor processes the audio broadcast signal and the emitted audio signals and outputs a waveform to the computer; and a program stored in the memory that analyzes the waveform from the signal processor and determines the presence of a speaker according to predetermined rules.