This thead is a great how-to for installing the AVH-4000NEX. I was able to get it done this past weekend and got a lot done. Backup cam works with no problems and the Bose speakers sound so much better now that I can customize the EQ fully. I'm still waiting on a few parts; the 40-HD10 antenna adapter I ordered on eBay was the wrong type, as it has a circular connection inside the adapter instead of a rectangular one, so I should be getting the correct one from Amazon tomorrow. Also, bought cables for both my Samsung Galaxy S4 and my iPod touch that I also still need to run from the center console to the unit. I'll take care of all that once I have all the parts I need to completely finish the job.
However, I am running into a problem. I soldered the wires of the PAC RP4-MZ11 according to jlcpremier's instructions and RedBaron's spreadsheet. I tested the SWC and they worked as they should, minus the voice command and phone answer/hang-up buttons. I went ahead and programmed them according to the PAC instruction sheets included with the harness. Turned off the car and messed with the backup cam connections as they were giving me problems. Turned the car back on to test the backup cam, found that none of the SWC didn't work and didn't respond. Pressed buttons and the LED on the SWC module would not flicker, which means no signal was being received from the SWC? Pressing the programming button didn't help that either. So I turned off the car, unplugged the SWC from the harness to reset it, plugged it in and turned on the car. Buttons seemed to work again, and programmed the buttons once again. All seemed to be good, so went ahead and installed the unit into the dashboard thinking that's the end of it until I get the antenna and android/iPod cables. But later when turning on the car, the SWC controls do nothing except for the voice command button. None of the other buttons work again. Has anyone run into this kind of SWC problem? It seems the SWC module gets no or partial signals from the steering wheel after I turn the car off and back on. No clue why. Buttons were obviously working a-ok with old head unit.
Much quicker question regarding the antenna adapter: what wire should I connect the blue power wire to? The blue wire coming out of the SWC module or the ACC (ignition) wire where everything else is spliced in (12V/6V step down power and brake bypass)?
Thanks in advance!