Pioneer MVH-S522BS Bluetooth Car Stereo with USB/AUX Inputs, Pioneer Smart Sync, and Hands-Free Calling for Enhanced in-Car Audio Experience.

Great sound. Good reception. Easy to pair

Replaced a garbage Pioneer s21bt with this model. The s21bt being a $40-$50 head unit, the quality definitely goes up with price. Originally bought the car I installed this in as a throw away car but its been through a rebuild and still here after 5 years so I finally decided I needed a better radio in it.Bought this Pioneer s322bt as a test to see if more money meant better quality. Just wanting Bluetooth audio, all single din systems do the same thing and output the same power unless you spring for a "high power" system like that big 100watt rms Sony single din or a double din with a screen. Still, 95% of head units max out at 50-60 watts per channel and 12-15rms. Their are "high res" units but then the quality of you speakers and wire come into play if you want to hear a real difference. I simply want noise, Im already running good rated Pioneer speakers all around, no dedicated sub, so pretty much any single din will do as Im not want to spend double din money going down the rabbit hole chasing a high resolution screen and features like wireless android auto and other big double din features.So here I am with this s322bt. I mentioned the "volume knob" and this is my biggest gripe about the cheap Pioneer I used before this. The volume knob on the previous one was trash, spin it too hard or fast and it freezes up, very irritating. This one here has got a great volume knob and doesnt skip or freeze if you spin it too fast. This also seems to keep time accurately also. Back lighting is super bright and is appropriately "dim" when you set the brightness down. This unit also hasn't unpaired from my phone at random. This s322bt is an all around solid value.

Fast shipping. Easy installation. Sounds good.

I bought this because I like Pioneers signature sound and I liked the looks of this model, they didn't seem over the top and looked like they would fit an older car's interior well. The functionality of the unit is great, has a good amount of features for the price and sound quality is good. The bass boost feature works well and doesn't muddy up the music.The build quality of the unit is pretty poor. I know, its only $130, but it just feels cheap all around. The lack of defined buttons means you can't control the unit without looking at it. The faceplate and trim ring is a glossy color which looks cheap. The actual unit wiggles in the dash even though the cage is firmly installed. Comparing it to something like an older Pioneer, its not the same. I should have bought the Sony DSX-GS80

FYI: YOU DO NOT NEED TO KEEP THE SmartSync APP ON YOUR PHONE TO USE THIS RADIO’S BLUETOOTH!All I wanted was a Bluetooth radio for my car. I got it. But maddeningly, this radio seemed to require a separate app called “SmartSync” to have its Bluetooth function. I knew that made totally 0% sense, so here’s the steps I used to get rid of the BS.1. Press the radio button called “SRC” (source). Click until the radio screen display says Bluetooth.2. Connect to the radio on your phone’s Bluetooth.3. The radio and your phone will prompt you to download an app. Download it. (Eughhh don’t let the app access any of your data or location)4. When the app is running on your phone, the radio will work with Bluetooth. When you close your app, the radio will stop playing music. This is the BS I was referring to earlier5. To stop the BS, LONG-PRESS on the “SRC” button while the app is open and your phone is connected to the radio. I had to play around with the radio a bit, disconnecting and re-connecting my Bluetooth to get it to work. Try this with the app open and closed.6. Once you get it to play music with the app closed, delete the parasitic app from your phone. The app is frivolous and unnecessary, and frankly only there to harvest your info from your phone.Aside from that little bit of frustration, this radio is great. I purchased this radio for my old 2007 car which is so old it didn’t even have an Aux cord input! Installing it was a pain (needed to purchase a bracket to put in the dash) but the radio has gorgeous LED lights and works great.

For the $, this is a killer radio. The bluetooth is great for music, and even better when it comes to call quality. The mic is actually in the face of the head unit (no wiring an external mic up into your headliner). Everybody told me I sounded clearer than factory Bluetooth car radios. The radio feature didn't work great in my 4Runner, but I think it was the 4Runner's radio antenna. Would recommend this to a friend, for sure.