TDS Rostra manufactured an aftermarket alarm system that was used as a dealer-installed system on many vehicles, include some Hummer and some Toyota makes.
As with most systems, the FCC ID on the control module (receiver) in the vehicle is different than the FCC ID on the remote control (transmitter). In the case of this common Rostra system, the receiver has FCC ID JDRAPSR and the keyfob has FCC ID JDRAPSBT.
Rostra is no longer in existence, so replacement remote controls are no longer made for this system. Fortunately, Remotes Unlimited does still have a few in stock.
These systems are user programmable.