adding a dimmer
I want to add a lite dimmer to several rooms....I removed the switch plate in a b.r.and the switch is "back-wired" with 2 silver? wires. There are no copper wires that I used in a previous home which just wrapped around a screw. The 2 wires that are there are not really flexable, they are just stuck into the holes on the switch. My question is...can I an inexperienced housewife add this dimmer with that kind of wiring or do I need to call someone! Thanks for any advice.