Pioneer AVH4400 NEX RadioPro 4 RP4.2-TY11 No SWC Problem

I've seeing the same thing. 2007 Prius v5 with Nav and JBL after installing Pioneer AVH-4400NEX and RadioPro 4 RP4.2-TY11. The RadioPro 4 is running a newer firmware than PAC has on their website and the Pioneer is updated to the newest firmware 1.01. The RadioPro 4 is receiving the inputs from the steering wheel, but either not passing them onto the Pioneer or the Pioneer headunit is registering them.

 

Can you elaborate I want to do this for my android headunit. But, I do have nav and imagine id have to disable the factory nav help.

 

Thanks for posting your experiences. I’ve been considering this same head unit in my 2004 (with JBL/Navigation). Auto Engineer - did you ever get your issues worked out?

I currently have a DICE Bluetooth adapter which is a little flakey (does not work at all on power up about 5-10% of the time, have to cycle Bluetooth on the iPhone another 10% of the time to get audio output through the car rather than phone speakers in times).

Been considering getting a Prime, but wow... still using Entune and no CarPlay/Android Auto support? Between that (smallish item) and potentially wanting to go full EV, I think I’ll see about getting a couple more years out of the 04.

 

Good news. I was able to get the system fully functional today. To recap, everything was working except for the steering wheel controls (SWC). I troubleshot everything (reprogramming, wiring, all settings) before contacting PAC. They were responsive within 24 hours via email, but I had a hard time getting ahold of them via phone. Based on my tests, the RadioPro device was receiving the SWC input, but it wasn't sending the appropriate signal to the Pioneer headunit.

After pulling out the stereo several times to test and troubleshoot, I decided to replace the RadioPro 4. PAC (the manufacturer) stated that it was probably easier to return the device and purchase a new one then have them send one to me directly, which was a bit annoying.

I purchased a new one, plugged it in and it works! So it appears they have some hardware QC issues, as both myself and the OP had the same issue.

However, with the replacement RadioPro 4, I can confirm there are no issues with the RadioPro 4 RP4.2-TY11, the Pioneer AVH-4400NEX, and a 2007 Prius with JBL and Nav (Nav no longer used with Android Auto)

 

Just confirming that you’re saying you do not use the navigation, rather than “it no longer works”?

While I use nav on my phone 90% of the time, I sometimes travel in areas with limited coverage and am hoping to still be able to use the built-in nav at times.

 

Hi OP, so you needed the factory bluetooth buttons to make the system work 100%?
I'm asking because I'm looking up upgrade the prius headunit with wireless carplay.