I just found out the same thing! I was a little upset to find the replacemet part is $150.00 vs. The previous horn being only $60 I had to order a key today and figured what the hell I'll go ahead and get the horn an he wanted $191.00 and so I searched online and all I can fin is the $150 one. I don't know about you guys but if im going to start spendig that kinda money I might as well get a real alarm with remote start for just a hundred bucks more or so.