Modifying Stock JBL Head Unit to Stream Bluetooth Audio...

https://www.crutchfield.com/p_581BT45TOY/USA-Spec-BT45-TOY.html?tp=68488

Crutchfield says this would fit in your car. You can pull the radio out and hook it up to the existing wire harness, then hide it in the dash. Doesn't look like you need to splice or tap into wires and you'd keep that OEM look.

With our JBL systems we already have blue tooth but it's a very old version and isn't capable of BT LE streaming that our iPhones and Androids use. Basic enough for phone calls. I'd imagine you can avoid plugging in the microphone that comes with the BT kit and still use the OEM blue tooth for phone calls and the kit for streaming music.

Our devices are capable of connecting to many blue tooth peripherals.

Another option you have is plugging a BT module inside the center console and placing it in the very bottom. You'd still keep the OEM look, the install would be very easy, and you could remove it just as easy. It would also be a bit cheaper.

http://amzn.to/2fxwi7n

That unit will also allow pairing of two devices in case a friend or significant other wants to play their library as well

 

My iPhone can connect to multiple Bluetooth devices at a time. But yes, I think routing a cheaper Bluetooth unit through the AUX will be your best bet

 

I bought my bluetooth connector on wish for like 34$ easy connected on the backside of the jbl stereo, loads of vids on how to do it on youtube. My iphone 6s connects to both the original bt and the new one and works perfectly. Took me 25 min to set it up. The contact for it connects to the second socked in from the side. First you have a wider socked with cables attached and then the second one is free. It adds like a second cd-changer so i have both bt and cd

 

I have connected a very inexpensive BT audio interface to my Prius' aux input and am able to use both, the Prius phone interface and the audio at the same time. My phone is an Android 6 and is able to be connected to both. I am streaming audio from my phone and when the phone call comes in it goes to the Prius interface and works just as usual. Steering wheel phone buttons activate the phone dial as usual, etc. The head unit switches audio properly, etc. Everything works just fine. The little BT dongle I used is a cheapo $15 thing I found kicking around my house, abandoned by my older son. I don't even know what brand it is. It is totally random cheap accessory and it works fine.

 

does the BT interface need to be charged?

 

Mine does, but I am sure there are different ones out there. I have one at home I use to stream to my old school hi-fi setup (Marantz receiver and some sweet 70's speakers). That one has a wall wart power plug and no battery to charge. I am sure it can be used in the car as well.