Thread: Volume in car low when I use blue tooth

So I have a jvc after market DVD player in my car, when I use the blue tooth or plug it in, I turn the volume all the way up (35) & all the way up on my phone, and it's not even that loud like I would say it's about half or even less of what it can go up to compared to wen u listen to radio, please help! Also can you stream video feed from my phone to the head unit? Via USB or blue tooth ? Thanks yall you guys are always help !