If your '15 JK has Sirius radio, the '13 Nav unit will be plug and play. My '15 came with the RES130 radio with Sirius, but without uconnect. I added a 430N Nav radio from a '13 JK. It was plug and play. The OEM Sirius satellite radio antenna doubles as the GPS antenna. So as long as you currently have Sirius radio your good to go. Just make sure you get the security code for the '13 radio. All Jeep radios after 2012 have a security feature that requires a code when installed in a new vehicle. I added the uconnect module to the 430N radio and had it flashed at the dealership to activate the Uconnect handsfree and the backup camera. Worked flawlessly.