In my 05 GT i have the shaker 500 or had anyways. I got my local audio shop to install a double DIN dvd player for me and it all went good except they said that they couldnt hook up the subs in the doors for some reason. i did a search through the forums but didnt find anything about this particular problem. Has anyone come across this yet? and what did they do i could put an aftermarket amp in there but if there is a way to hook up the stock amp to my dvd player that would be alot easier and would best fit my needs out of the system.