An interface and corresponding method, where {TAIL ~ the interface} is connected via a first connection to {HEAD ~ a factory data bus} of a vehicle which transports signals according to a first data format, and further connected via a second connection to a data channel of the aftermarket component which transports signals according to a second data format 
An interface and corresponding method , where { TAIL ~ the interface } is connected via a first connection to { HEAD ~ a factory data bus } of a vehicle which transports signals according to a first data format , and further connected via a second connection to a data channel of the aftermarket component which transports signals according to a second data format
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH