This is a simple guide to add a glove box light to your 86 or any vehicle for that matter. You probably don't even need to use this guide to do this, but my intention was to make people aware that this light is available and stupidly simple to use.
There are absolutely no wires to splice or cut, this is a simple stick on and you're done
I bought a motion sensing light bar from Amazon (
https://www.amazon.com/gp/product/B01KO4W6VM/), and used the included 3M double sided tape and stuck it to the roof of the glove box. Now, whenever I open the glove box, the light comes on. Once you close the glove box, and there is no more motion, the light will turn off after a few seconds.
The particular model I bought was rechargeable with a microusb port. It also came with a removable strip magnet, meaning you can remove the light bar from the glove box any time you want and put it back on by simply attaching the light bar back onto the magnet. The other side of the magnet is the 3M double sided tape that you stick to the roof of the glove box.
I can either use the 12V port located in the glove box and use a car charger that has usb on it to charge it, or I can detach the light bar and charge it at home. It says the charge is good for 3.5 hours of continuous on time. Being that I rarely open the glove box, it will only turn on when it senses motion, so the light would probably last a few weeks/months before it needs to be recharged.
Hope this was helpful and enjoy completing the easiest DIY ever!