new cd player

Call me lazy I don’t care. I currently have a pioneer DEH-P4400 installed in my ’00 Integra, well my problem is when I installed it in order to keep the little black tray I had to tie it to the bracket with wire. The fact that I was able to put the bracket and the tray back into the dash was amazing and I don’t think there is anyway in hell that I can get it back out short of cutting it. Well now my old pioneer is messing up and I want to get a DEH-P8400MP It would be nice if I could just pull one out and put the other in wiring harness match and all but im sure its not going to be that easy, the main thing im worried about is will the P8400 just slide into the bracket that the P4400 is in. I really don’t want to pull that thing out and put another bracket in.