Pressing "the spot" on the lower left corner does not work on this unit as it does on previous NEX models(8100,8000 for example)..PAC TR7 does not work either..Seems a simple on/off switch is the only thing that will bypass it..Any ideas?
Possible extend the time out on the negative trigger wire on the TR7?
yeah I would like to know too, I just installed the 4100nex on thursday, I grounded brake wire to the radio ground like I did on my 8000nex, and I never had the nag screen unless I shut the radio off on the navigation screen, then if I had it on Sirius radio and I shut the radio off and turn it back on, it would just go to the Sirius screen without the nag screen, yeah the 4100nex ask me no matter what source i`m on always give me the nag screen. 
It only appears to be an issue on the 4100, and the 4000 to i believe.
I think the issue is that the TR7 comes on and does its thing and times out before the intial Pioneer/NEX splash screen, and first warning screen..So the unit may never really see a no ground/ground immulation
Ive put in a few of the 4100s and 8100s..seen a sum quercks in both units
Need a micro bypass for the 4000
Is that like a double pulse trigger
Yep.
I have one for my 4000 and it works fine.
i install the 4100nex i had to get a bypass on ebay it was like 15 dollars to by pass it but it does work i think the seller its lessco electronics on ebay
Thanks for all the info everyone..ill get one on the way and give it a whirl
I have the 4100NEX we ran a toggle switch and it works with no issues at all.
When I installed my 4100 with the micro bypass it does not work!!!! Load time is to long..... the bypass turns on before the system boots up.If there is another solution i would like to know, other then a toggle switch.
you are using the wrong micro bypass - this one is what it's designer directed me to use: http://amzn.com/B00VKQ6ECQ
Just wondering tickerguy, did you just match wire for wire and was it good to go? The reason I ask is because ive heard that a wire had to be moved over in the harness or something like that. Just installed a 4100 yesterday and tried a 2 pole switch but it wasn't working for me. (Connected parking brake wire to one side and a wire that was tapped to the ground wire from the harness to the other side on a 15 amp switch. Did I miss anything?) anyway, purchased a bypass so just wondering.Yep.
I have one for my 4000 and it works fine.
you are using the wrong micro bypass - this one is what it's designer directed me to use: http://amzn.com/B00VKQ6ECQ
I bought one from diybypass.com that did not work on my 4100. I contacted the seller and he said the timing changed between the 4000 and 4100 so he tweaked the circuit and sent a replacement to me in the mail. Will install it this weekend and let you know.
I wanted to report that the new bypass i got from diybypass.com does work with the 4100. Not sure if the guy will update his website to show that he has one to support the timing of the 4100 but if you order one from him I would make sure and specify.
I had a TR-7 laying around, but decided that a simple relay/hidden micro (mom-on) switch was easier and fool proof.
I just bought a 4000 and am really looking forward to using CarPlay! I hope to have everything up and running in my Honda GD Fit Sport by this weekend 
I bought a bypass for my 4100 from micro bypass.com... It would work intermittently. emailed him back and forth troubleshooting... Made sure it was the correct one etc... He sent me another one to make sure it wasn't faulty. What I think the problem was I have a iPod classic that will play video. If I have a DVD in the drive and the iPod hooked up when the second nag screen comes up the ok is grayed out. If I don't have the iPod connected it works no problem.