No, just a quick swap out of one JVC to a newer one with same wiring harness. Pretty much plug and play.

Strangely everything started working normally all of a sudden, for one drive trip. While everything worked for a short while I'm right back where I started. The car is dead again with the same symptoms as above. As soon as I turned the key on the spoiler went up. Battery is at 12.1V. I'm thinking it may be the battery, but a 10 month old good quality AGM battery? The battery was one month old when I bought the car 3 states away, purchased by the previous owner, and had it shipped here so I don't think the battery warranty is in play. Autozone tested the battery a couple of months ago after charging it and said it was good but I wonder. Ideas?