Garmin nuvi 660 Car GPS Receiver

I really like the accuracy of the mapping software and the ease of use. The unit is very simple to operate and any one can use it. The only complaint about the unit that I have is with the volume of the unit. In my vehicle there is not enough volume to clearly here the directions once the vehicle is traveling above about 45 mph. The volume is just not load enough to hear the directions or use the bluetooth phone connection. Both were features that I purchased the unit for.

I have contacted Garmin and undated the software with no improvement. If I play the sound through the radio I can increase the volume enough to here it but then I can not listen to the radio......

Other than this problem the unit works great.