datlas 

See below thread, I was able to download maps for my 530 and that worked.

But one major reason I bought the 530 was to interface with my Varia (510) radar. The alert tone is way too quiet. Advice??

Troul 

is the audio setting able to be adjusted within a smart device using the app?

njkayaker

https://forums.garmin.com/sports-fit...r-edge-5xx-8xx

Polaris OBark

Mount it on top of the stem rather than out front.

fooferdoggie 

about the only loud garmin was the 1030+

datlas 

Thanks for the suggestions. I already have the unit mounted on the stem. I don't think the 3d printed amplifier will work with that, but I suppose it's an option.

I know some suggest using the BT app for the Varia on their phone for the alarm, but the Varia I have is the 510 which is NOT BT enabled.

I suppose I will have to accept this, but if there are other suggestions I am open to them.

Seattle Forrest

I have mine paired to a Garmin watch. It vibrates on my wrist when the Varia wants to tell me about a car. It's hard to miss.

Polaris OBark

I have the 530 paired to the original radar. It seems plenty loud. I did notice there are different sound settings, but I don't recall seeing volume control. Mine makes multiple beeps rather than a single tone. I think that was the default, and it works for me. It might be worth fiddling around with the notification settings.

Chuck M 

I assume the visual alert still goes to the Edge display? I'm thinking about getting a Varia, but can't hear the Edge tones at all even with my hearing aids in. But I do use my Garmin watch as a heart rate sensor so the vibration alert would be a good solution for me.

Warbird21

I don't have an issue hearing my alerts (multiple beeps).

Seattle Forrest

I'm currently riding with a Garmin watch and an Edge computer. I put them both in outdoor bike ride mode, and have the Varia/radar paired with both. The watch and Edge both beep, and they both show a visual of the traffic behind me. The watch also vibrates, which I find pretty attention getting. When I feel the watch vibrate I can look at the Edge screen and see.

The watch can only take part if (1) it's paired to the radar I don't know if all their watches can do that or not and (1) it's also in ride mode. If the watch doesn't know you're riding it won't listen for the radar.

Chuck M 

That makes sense. I guess I need to experiment to see if I can broadcast the HR from the Forerunner at the same time as logging a ride with it.

Seattle Forrest

I don't know which FR you have specifically, but when I goggle it it looks like most of them can do it. Just a matter of how you turn it on is different for each one!

https://www8.garmin.com/manuals/webh...57E7D53C2.html

https://www8.garmin.com/manuals/webh...88B3CD341.html

https://www8.garmin.com/manuals/webh...5B06F01BA.html

https://www8.garmin.com/manuals/webh...5B06F01BA.html

Chuck M 

I have the 735XT which I'm already broadcasting HR to my Edge with. I just didn't know if it would track a ride and broadcast at the same time. It may be all moot because my Bontrager Flare taillight I thought was dead isn't really dead and so I don't really need a new rear light. Nevertheless, the vibration to a wrist worn device seems like a good solution to the low volume of the 530.