Bluetooth Mic/Volume Issue

mikereidjr

Member
Joined
Mar 16, 2019
Location
IL
TDI
2011 Jetta Sportwagen
I had an RCD-510 with a 97w Bluetooth module that I swapped out for an RNS-315. The Bluetooth streaming and phone volume is so quiet I can hardly hear it on the highway.

The RNS-315 has Bluetooth in the radio, and if I disconnect the Bluetooth module under the passenger seat and use the Bluetooth that is part of the radio vs the module on the floor the volume is louder (and there are more features) than with it connected. The issue is the with the module disconnected there is no microphone.

Has anyone done this before, do I need to buy a new microphone and run it to the back of the radio (which one do I buy?) or can I re-wire the one that is already in the car which goes under the passenger seat first?
 

sandmansans

Veteran Member
Joined
Nov 3, 2013
Location
NJ/PA
TDI
2014 Jetta
In the rcd headunit if I remember correctly, there's a setting to increase the by volume output

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