i was looking for a thread that shows me how to change my head unit. i couldnt find one or i might have missed it. i was wondering if you guys can help. right now i have an alpine head unit and im upgrading it to a better alpine head unit. so i was wondeering do i just take it out and just puck it in

 

Take the radio trim out first. The remove the 4 screws holding in the radio. Then remove radio and you should just be able to plug in the new Alpine in the old Alpines place with the same wiring harness just like the Pioneers.