I recently bought a new Alpine CDE-172BT Bluetooth Receiver. I currently have an older Alpine headunit which had cd, ipod, and sirius satelite, installed in my car. I think i installed this around 2006 or 2007 in a 2006 honda accord coupe lx, where I disconnected the factor radio. I am wondering if I would be able to just pop out the old unit and plug in a new one or am I going to need to change the wiring harness now that this new radio has items such as bluetooth and usb, which my current radio did not have. Note it was already rewired so it does have a harness, not just the factory harness.