BOSS Audio Systems MC900B 4 Channel Amplifier for ATV UTV Car Marine - 500 High Output, Low Level Inputs, Full Range, Weatherproof, Bass for Subwoofer

Easy to install, all clearly labeled. Excellent sound quality, small in size, easy to place in a hidden area, and the controller has a nice long cord so you can place it anywhere you want. The bluetooth connection is seamless and connects almost instantly. It’s an excellent value for the price, i haven’t bought a radio or amplifier that i have liked more. I use it with an iPad that i use for my radio and it charges it seamlessly. The USB cord only charges though so keep that in mind, its bluetooth only, but like I said it’s a nearly perfect bluetooth connection. It will also run a separate amplifier for a subwoofer or whatever you want. It’s a fantastic Amplifier with a great sound output and good volume control. No radio needed!!

international lonestar semi (2016) i used this Bluetooth amp on a custom stereo setup in my semi , I eliminated the stock radio and put a ipad in the dash ...

Awesome product! I have this in two Japanese imports that I wanted to retain the OEM radio (that doesn’t work in the USA) but still have tunes. It was easy to wire this system into the OEM speakers and now I have music. Side note, this is a better amp then most head units so you can even upgrade your speakers for better sound.

Anyone having any trouble with the ignition wire? Did tried going to a toggle switch and or wiring it red&yellow to the battery can’t get it to work

I have the product installed in the glove box of my 1951 Chevy truck. I bought the Item in 2022 but didnt get it installed until late 2024 it worked well for a few months now the music comes on and off. I sure they will say I've had it past the support policy. I should have lasted a lot longer than a few months. Very disappointed 😞 I will repost if I get some help on this.

Installed in a classic car i did not want to remove original radio . installation was very easy due to small size it is hidden behind glove box. Paired with my phone very good. connects when i turn key on 1 beep its connected . Has very good power no sound adjustment though bass is low can add amp if desired i am very happy much better that 1 speaker AM. LOL

I bought this amplifier because i wanted to play music but did not want a complete radio system as car is build for street and strip. This Bluetooth amp was what i needed. i installed a radio delete plate in the factory location as this is where i will mount accessory switches (electric fans and fuel pump) and start button. This unit is small enough to hide anywhere under the dash or in glove box. The sound is excellent for its size. I have it hooked up to a pair of 6.5" Rockford Forsgate P1650 speakers for the rear and the center dash speaker is the Retro Sounds dual voice cone speaker and all sounds very well - loud enough too. i play music from my iPhone. What i wish it had was an app to allow adjustments to front and rear or left to right but it truly isn't necessary as it sounds fine the way it is. What i also wish it had was a built in mic so i could answer calls and hear calls over the car speakers. For the money spent and to have very good sound in the car, this was a great option. Now, i hope it lasts. follow the instructions to the letter and make sure you have a good ground. When wiring speakers it is important to wire them correctly + / - terminals must be correct. take your time.

Worked well on my bike but only lasted two years, then it failed