I installed it myself. You can go to www.beckerautosound.com and order the wireing kit and the radio removal tools for under $20. You can also download the radio manual for the Crossfire. It tells you how to setup the radio to use with a phone. The car kit you will have to see if one is made for your phone. If you have a bluetooth phone you can get one from Nokia to hook up to the radio. Then you can keep the phone in your pocket and still use it.
It isn't very hard to install.