my husband and i have a truck that is being repossesed because he did not pay a loan on it....1. He has hid the truck, should i let them know where it

This is a mixed question.  If you are on the loan and/or its a community debt, you could be held liable just as he could and would benefit from the offsets which repossession/surrender might offer.  A truck in hiding is not operating and has no real utility.