Almost the same thing happened to my '98 XJ8 about a month ago. Neither the dash button or keyless entry fob would open the trunk, although I could hear the acctuator working. I'm not sure how your key works on the '95 XJ6 however, on my XJ8 the key doesn't turn at all, it's simply inserted intoa slot on thetruckwhich mechanically pushes the latching mechanism open. Of course my first few attemps also failed, and then I started pushing gently down on the truck a few times with the key inserted in the slot - and it worked! Come to find out,when our son put his bookbag in the trunk that morning,one of the shoulder straps became lodged in the latching mechanism. We we're so glad that I could get into the truck because our mechanic was talking about removing the license plate assembly and cutting a hole to expose the trunklatch. Best of luck

Ron
Tucson, AZ.