I got my car with a preinstalled system, and everything was working until i had some small work done on the car. I went through all the connections and found a loose wire where the fuses are located. From what I found, I am assuming it is the remote wire. My question is, what and where should this wire be connected. The car is a 2000 with the factory radio

 

does the radio work just not the amp?

anyways

should be wired to the remote wire on the head unit..

but you can use any accessory fuse that does not have constant power