Hey everyone

Just yesterday I noticed a very slight rattling noise which sounds like some kinda plastic piece vibrating when I'm accelerating or even just moving. I've pinpointed it to somewhere on the dash in front of the drivers seat (RHD). I'm not certain but it sounds like it could be somewhere in or around the speedo/tachometer.
With the radio up I can't notice it but I when it's quiet it bugs the hell out of me..!!
Has anyone else had this and were able to locate the source or can anyone suggest what I should check which might be the issue here? It's really annoying and I want to get this sorted asap.
Thanks