I had a kenwood single din dvd headunit that got fucked up by a shop that was putting in a ipod hook up for me. long story i got ripped of and never got the headunit back or fixed. So i want to take an alpine out of another car i have and put it in the truck. My question is the kenwood had a "Kenwood Monitor w/DVD Reciever Hide-Away Unit" or "Brain" it doesn't seem to be hooked up to the amp but I have limited experience with this stuff and wanted to see if anyone knows what i should do in this situation. Do i just wire up the head unit harnesses and hope for the best? Or is there something I can check to make sure the Brain won't be interfering with the alpine?