alarm key chain

[Laura]

I went to the web site and they give you a choice to put in product info.I did that and they say there is no match, they do however have one of the 2 different key chains i was given. The one i carry all the time looks like a little cel phone with a blue car on the front and when the truck starts it shows exhust coming from the tail pipe. The one i have for spare is the one from the web site its very plain and its called a prestidge audiovox. Was this a after market add on or do you guys no if this came from the factory like this.