Speaker boxes (homemade is an option)
A box to put them in (make sure to measure the size of your stereo plus your PSU, which I failed to do)
Wire strippers and crimps
Something for cutting the box.
Step 1: Gather Supplies
Step 2: Which Wires Go Where??
To begin. Get the big plug from the PSU containing many different colored wires. You only need 2 for this. The green one and any black one. All black are ground. You have two options.
1) Connect the 2 pins like in the picture
2) Cut the 2 wires, strip them, crimp the together.
I did option 2 because it seems less likely to come apart.
From the other set of cables on the PSU choose one black and one yellow. Strip both of these. They will be needed in the next step.
From the car harness get your yellow and red wire (usually its these colors) Strip them about an inch down and twist them together.
Next connect these with the yellow from the PSU and crimp these together.
Get the black ground wire from the harness and strip it and connect it with the black from the PSU.
If done correctly you can now test out the unit. Plug in power to PSU and the harness to stereo. It should power on if done correctly.
Step 3: The Box
Measure twice cut once
Do as I say, not as I do.
I measured the stereo and then roughly measured on the box. I cut a bit smaller than needed because making the hole bigger is easier than cutting a whole nex box.
I used a x-acto knife and a pocket knife because that's all I had available at the time and it did a horrible job. But for me this is more of a temporary installation so that's okay.
Cut a hole for the PSU plug also.
Drill plenty of vent holes for the PSU fan to blow out. Cutting out a square might be even better. More than what i did is definitely needed.
Holes for the wires are also a necessity. Size depends on wire thickness.
Step 4: Assemble
Step 5: Wiring Speakers
To wire them follow your headunit instructions. Simple enough. You can add front and rear speakers for surround sound if wanted. If you have and AUX port on it then you can plug it in to your TV and have a surround sound system.
Step 6: Pros and Cons
Can run multiple speakers. I can run 4 and have heard off some people running a sub and amp too!
Can use old materials and be even cheaper!
I can watch videos on mine and it has radio and AUX in and a SD card slot!
Mine actually has RCA inputs so if I wanted to I could plug in any RCA out device and view it on the 8" screen.
Sound quality depends on quality of materials, so this can go both ways.
If you dont have any of these things it can be pricey.
You have the chance of frying your equipment if done wrong.
I personally like this and can post a video of it in action if requested by anyone.
Hopefully you enjoyed my first 'ible and maybe I'll make a version 2 someday.
Thanks for viewing :]