What if I was to tell you that you could keep your factory radio (head unit) and have crystal clear audio for $250.00 and your choice of speakers... Well it's true!!! So i was at my local audio store looking into new speakers and got brought up to speed on bluetooth amplifiers! Heres the rub, lets face it you don't want to hack up your dash with an aftermarket radio than retro sound is essentially your only option, heaven forbid you have a 69 as I do than your talking $500 for a new radio! Bluetooth amplifiers work like this, supply power, ground and connect each of your 4 speakers into the amp. Pair your phone to the bluetooth signal the amp is putting out and voila! You now use your phones music, a radio app or bluetooth iPod to play your music... I might be behind the 8 ball on technology but this an awesome way to control your radio.

here is a link to the amp:

http://www.sonicelectronix.com/index.php...CFQJZhgodkdYL5Q

here is a youtube video to explain further:

https://youtu.be/FsG0qEtowiQ