[SMCARA] Audio Wiring Question

[alandmann at yahoo.com]

Happy Independence Day Everyone!

Having so many smart and experienced people in the reflector I was wondering if anyone of you would be so kind as to lend your expertise to a problem/question I have. 

The setup is this:
I have the need to split the audio output of an electret microphone, to two inputs in a radio/Bluetooth/ intercom project on a motorcycle (GL1500SE). The Bluetooth output will provide power to the microphone. Because the intercom input is expecting a dynamic mic connected to it, it will have a DC blocking capacitor in line with it to block the power from traveling into the intercom setup. This way the Bluetooth and intercom will both have access to the microphone all the time, without the need to switch it. This will allow me to be hooked up to my motorcycle’s intercom system, while also having the ability to queue  “OK Google” on my phone, which is connected to the Bluetooth module. 
 
My question is, will a simple passive setup like this work without transformers and impedance matching, as I do not require studio quality audio so it does not have to be perfect.

Here is a link to the circuitry schematic because the reflector does not allow attachments:
https://drive.google.com/open?id=0B4HwK_7ksYQFWHpmYkJhTEE3NkU



Thanks in advance!

Allen Landmann,
KB3WEY