A vehicle comprising a keyless go system, and at least one key fob, said keyless go system being operatively connected to a locking/unlocking subsystem and an engine start subsystem, said vehicle further comprising at least one LF transmitter, at least one LF receiver, at least one HF transmitter and at least one HF receiver, said vehicle further comprising an aftermarket keyless go system interfacing with said keyless go system, wherein at least one of said at least one key fob is embedded into said vehicle, and wherein when a user sends a lock/unlock command, or a start command with a portable device, said aftermarket keyless go system interacts with said embedded key fob to selectively enable and disable low frequency communication between said embedded key fob and said keyless go system.