i know this is a stupid question to most people here but my tc come in next week and i didnt want to have to buy the ipod pioneer deck from the dealer and i heard that u can still play ur ipod thro ur system through the aux jack in the armrest. is that tru or do i really need to buy that stupid deck

You could still play your ipod through the aux jack, but you won't be able to control it through the stereo or the controls on the wheel, also, it will not charge the ipod.

does the aux jack come with a cable to hook my ipod up with or do i have to go buy one somewhere

it comes with it... or it should at least, if you don't have one, talk to your salesman or parts dept. they should give one to you.