2004 Prius aftermarket radio with Bluetooth?

i bought a kenwood ddx419. the bluetooth sucks. no one can hear me if the car is moving. many new radios have bluetooth; read up on them to select 1 that has good bluetooth. i am gonna see if i can get a better mic. perhaps that would help.
if you have it installed professionally, get the installer to guarantee bluetooth performance.

 

any double din will replace the oem junk base radio. scosche makes the only install kit i know of. it don't look too bad.
if you want to do a single din stealth install behind the compartment, any single din radio will fit.

you will need the metra axxess interface, and a wiring kit which is easy to find on ebay. the one i bought came w/ the 68ohm resistor pre-installed.
if you want to use one of those stupid radios w/ a pop out screen, all bets are off. personally, i think the kiss rule applies. get a fixed touch screen. many radios have illumination color choices too.

the only concern i'd have is customer ratings of bluetooth. i have contacted kenwood to see if there is a fix for my lousy bt.

 

virtually all modern radios are universal fit. they all have 1 of 2 common sizes. either single DIN for the cubby stealth install, or double DIN to replace stock junk radio. the scosche kit is also universal. it may need a little modifying to make it look just right.
if i knew which radio had the best bluetooth, i'd probably have bought it. look at customer reviews to see if any particular head unit brand has good bluetooth. assume all the glowing reviews are fake.