I currently use a Garmin 530 and a Varia 510. My main gripe is that the Varia alarm on the Garmin is way too quiet (I am 60 with so-so hearing). The Garmin gps can make louder sounds but you cannot make the Varia alert sound louder. The 530 screen cracked recently and although it works I am thinking of getting a new head unit.

I don’t need anything too fancy (just what a 530 does with navigation) but can make a louder alert. I don’t want to break the bank so $200-250 budget. Would consider used but prefer new.

Suggestions?