I don't know if blocking out the light with a trash can will work, but if it will, you're probably better off using a Rubbermaid trash can. It will be a better insulator than a metal trash can. You'll also have to use a heat source such as heating cables. Christmas lights work pretty well too. If you do that, then it should overwinter for you. The only protection i gave mine last winter was covering it with a clear plastic bag. We got down to zero last winter, so the leaves all died, but it started regrowing in April and didn't have any rot.

Palmlover, I put four stakes around the plant, connect the stakes with landscape cloth,and put in dry leaves. I use a trash can cover when it is going to snow or rain, or on very cold nights. Even with this method(plus using wilt pruf and fungicide) I had major damage this first winter. It is now recovering. I have better luck with needle palm, but they are so sloooooow!