




[spoiler="Sample Audio"]https://www.youtube.com/watch?v=MdRRR_de6ag[/spoiler]
Notes: You must have internal stereo amp to take advantage of the actual stereo sound and not just stereo mix.
Also my GBZ is using PWM audio so it just amplifies all the crappy sounds as well.

My GBZ charges through a micro usb port on the bottom. (the micro usb output is at an angle, only way it would go in smoothly)
The 2.7k Ohm resistor is for the original red LED. ( I broke the lead and used a diff 3mm LED)
You cannot see it in the images but I used a piece of plastic for support under the USB micro
break out board for support.
Parts list (yes you can use way cheaper parts)
Micro USB cable
Adafruit 1000C https://www.adafruit.com/products/2465
Adafruit TPA2016 stereo amp https://www.adafruit.com/products/1712
Adafruit Lithium Ion 2000mAhhttps://www.adafruit.com/products/2011
Pair of 4ohm 2W 1.4" speakers http://www.ebay.com/itm/291791971417?_t ... EBIDX%3AIT
Micro usb breakout board http://www.ebay.com/itm/2pcs-Micro-USB- ... SwQYZWv44P
2.7K Ohm 1/8W resistor http://www.ebay.com/itm/161388874358?_t ... EBIDX%3AIT
Nuby gameboy speakers http://www.ebay.com/itm/NUBY-gameboy-Sp ... Sw44BYC7GL