Nuvi 2689LTM audio

 

I am asking the members here who might have found a solution, I searched but could not find it. I have a Jeep Wrangler Unlimited (rag top) so naturally with the top down Garmin is tough to impossible to hear. Volume is all the way up just believe it can't handle the ambient sound.My in car stereo has an auxiliary input, now the device is too thin and under warrenty sound don't really want to drill holes and put a jack in, so I was considering using a $10 suction cup microphone for picking up audio on a telephone, it has a 3.5mm plug to fit the aux. on the car stereo which has plenty of audio output. What do you think, or do you have a solution I have not thought of? Warm weathers coming and that tops dropping soon smile