I was happy to see the PO used an installation plug kit when he installed the old receiver, so it was just a matter of splicing 13 color coded wires. Then it was plug n play. About 20 minutes.
When I pulled the top panel off my dash, I found a coat hanger pushed into my defroster ducts so pulled it out. Now I don't have defrosters. The coat hanger must have been there to hold the defroster door open.