Alarm and full width mat supplier?

I'm hoping to buy another used 90 TD5 shortly . My last one had a simple intruder alarm with a secret switch and two sensors either side of the windscreen. As it was already fitted when I bought the 90, does anyone know where I can buy one for my new motor? I'd also like one of those thick one-piece front mats to keep the noise down but can't remember who sells them... Thanks for any help..