Quote Originally Posted by RaevynCarrion View Post
... and I bought the PAC RP5-GM11 Wiring Harness to retain the factory stereo controls, etc. To my knowledge, I've wired everything correctly. I've tried every setting on the control box, but can't get the stereo controls to work, and I've lost my Sirius XM altogether. I don't know if the loss of XM is because the stereo may not be compatible, but the wiring harness is supposed to retain that, I believe through the AUX input provided on the rear of the stereo as there are connectors for everything that the factory stereo has wires for. I know there are typically two remote wires on a stereo harness, one blue for the aftermarket sub amp, if applicable, and one blue and white for the the factory remote system. I may have the colors swapped in my head, but I matched all the colors as the directions said to, but I'm retaining none of the stereo controls and I would really like to have that option as it's far more convenient than leaning forward or picking up my phone to switch songs.

The other issue I'm having since the stereo install is my HUD calendar keeps resetting, and I'm unsure if this has anything to do with a misplaced wire, as well as my parking brake light won't shut off. There is a wire on the harness for that, but I wasn't sure if it was necessary so i didn't connect it yet.
As far as I know the factory XM will not work with an aftermarket radio. You should have had to buy another adapter that will need to be installed. The instructions tell you the receiver unit must be able to see the sky, just like the one on the roof. So, i put mine on the passenger side dash near the windshield and haven't had any issues. If you go to Crutchfield you can find out all that info. It's currently free with a rebate. https://www.crutchfield.com/p_220SXV...0V1-Tuner.html

The steering wheel controls were tricky to program. If I remember correctly, there are more programs available than functions on the steering wheel. I think I had to program a button even though it wasn't being used then overwrite that button later in the programming sequence. You just need to keep trying.

The date on the DIC is a known issue caused by the PAC steering wheel control module. I actually contacted PAC and they confirmed. There are other quirks related to the PAC controls as well. I just learned to live with them. The parking brake wire is only for when you want to watch dvd's. It's a safety feature so people don't watch movies and drive. I did have to ground it to the radio since i wasn't able to reset any of my bluetooth settings. For some reason that wire is related to other functions besides the brake.