yeah, just make sure to also hook up the amp turn on wire from the new deck to both the power antenna and the power amp turn on in the Jeep, or when you switch from radio to cd mode on your deck, the power amp will turn off, cause the power antenna will retract.
I just thought i'd throw that out there cause I've seen people not do that, and think they're cd player is broken when it is not.
I also would suggest bypassing the infinity amp if possible, but it requires running more wires through your jeep. I don't like the infinity amp cause I can't find a way to adjust gain on it. I only turn up my cd player about 4-5 volume notches out of 30, and it's as loud as I'd ever need to crank it. This might sound alright, but sucks if you hook up a sub also, cause you can't turn up your deck loud enough to get the level that the sub amp needs to pound hard. I found that wiring the deck straight to the speakers, and bypassing the infinity amp fixed this for me, but took a lot of time.