Going to preface this by saying I don't know if this is a Spotify issue, an Apple issue, or a JVC issue, but I'm starting here.

I have a JVC KW-R500 deck with direct USB connectivity for my iPhone 4S. The deck supports streaming from devices.

Symptoms:

#1 - Deck freezes upon connecting with Spotify enabled (unable to pause, skip, or use other functions on the deck, but can on the phone)

#2 - Consistent blinking "READING" message when device is connected, Spotify stops playing and sits paused indefinitely

#3 - To resolve #2, I can switch to a small playlist on the phone, then switch back to the larger playlist, however #1 occurs at that point

#4 - If I connect while playing the small playlist, oftentimes #1 and #2 do not occur and I can skip using the buttons on the deck just fine, however then switching to a larger playlist produces the same conditions as #3

#5 - If during #3 or #4 I hit skip on the deck, the deck freezes and just shows the track number indefinitely. It also does not show the proper track number. It may decide (sometimes after minutes) to actually skip at a random point in whatever song it's currently on after this occurs.

Note: these do not occur when connected and using Pandora, however the deck has a pseudo-native integration with that app. It treats Spotify the same as it does the iPhone "Music" native app.

Troubleshooting Steps:

-Repeatedly disconnect, hit play on phone, reconnect (no result)

-Attempted to switch from Head Mode to Ipod Mode to Aux Mode on deck (no result)

-#3 and #4 (above) are the only ways that I can get Spotify to consistently play, and even then all skipping of songs must be done on the phone (while driving!) to avoid #5 so it is unreliable at best

Not sure what else I can try for this, but I was hoping someone else had run into it. Very weird.