Hi everyone. First I am giving credit to "maxbear3145" for making a thread on the RA3 to RA4 update. You can find that thread here: 1st Mod : Nav - RA3 to RA4
My experience went just as smoothly and I am very pleased with the result. First, I have a 2014 JGC Altitude which comes stock with the RA3. I was about the pull the trigger on dealer Navigation update ($595) but read about the seamless swap of the RA3 to RA4 system. I obtained my RA4 through the eBay seller "daimlerfinancial". This person is totally legit with 100% positive feedback. The cost difference between dealer update and the RA4 swap was not even $200. I decided for the hard swap in order to obtain the upgraded features that the RA4 provides (HD Radio = AWESOME, 3D Maps, etc...). If anything it was worth it for the HD radio.
I received the RA4 in 2 days after purchase. Within 15 minutes my RA3 was removed and the RA4 was in its place. It was so easy, directly unplug from RA3 and plug into same colored connections on RA4. DONE.
RA4 RADIO INSTALLED:
After installation turned on the Jeep and found that Sirius, 911 button, and Uconnect was not working. I also was not able to pair my iPhone. I figured that this may be directly related to having the older software version and it did require an update to the latest software.
Unfortunately, during the update I ran into an error stating, "Please Update Insert USB". The screen would show this message, flash on/off, reset, and show the message again. It continued like this over and over. I realized that the USB stick was 64GB in size so I found a 4GB stick, formatted it with FAT32 and placed the most recent software ISO onto it. I inserted the stick and it ran through the entire installation process to fully update the radio software (PHEW!!
). After the update everything works (except Uconnect store access). My phone paired easily, my Sirius would connect, 911 is working, and there are no delays when transitioning through the menus.
FIRMWARE UPDATED VIA USB STICK:
HD RADIO IS AWESOME
NAVIGATION IN THE IP SPEEDO SCREEN, TOUCH SCREEN, 3D MAPS
I did have to call SIRIUS to activate my 1 year free subscription. They asked if it was a warranty repair from the dealer and I just told them yes. They then asked for a work order # because there should be a dealer code to waive the $15 swap out fee. I told them I had nothing so she waived it anyways. I also found that my Sirius Traffic Link and Mapping trial is not added to the free subscription. I asked about this and they just wouldn't add it. Although I don't plan on subscribing to these features, I did want to try them during the free trial period.
The HD radio is amazing! So many more channels to listen to and the clarity is better than SXM. I am also pleased with the Navigation. I only tested it out for a 3.5 mile drive but it worked seemlessly. The instrument cluster lcd pops up navigation directions and the navigation voice works. The 3D terrain is also working fine.
Overall I am happy to make this purchase rather than going in for an RA3 Navigation update. It is an extremely easy swap and the HD radio is very delightful. Check out the eBay seller and/or send him a message. I worked with him via text message and phone to get my RA4. He answers back quickly and shipping is just as quick. Very impressed and happy with going this route.