This device operates as per the standard S4 Aston Martin V8 Vantage Remote
Remote Control Switch, with the added feature of it remembering the last selection that was selected on the remote key fob.
Hence if you finish in loud mode then it will stay in loud mode and stay that way through unlimited re-starts or until you select the quiet mode button at any time of your choice. It achieves this by remembering the last button you pressed in a magnetic core memory and hence has zero power drain, using no power at all when the ignition is not turned on.
