360 controller wiring fix question I suppose?

[Ðeadeye]

First of all, sorry for the confusing title I wasn't quite sure what to put in there.  Also, I hope this is the right place to put this it's been a while since I've used the forum.  

 

First off I have to say this is the first time I've attempted a repair like this so there might be a lot of newbie mistakes.

 

So a long time ago my dog chewed through the wire on my PC 360 controller.  I wish I had saved the old wire but I wasn't thinking.  Fast forward a year and I've tried to fix it.  I used an old DELL wireless adapter USB chord, chopped it open near the non USB end with a wire cutter and took a look.  After inspecting both the controller's frayed wires and the USB chord they seemed to have the same set of wires.  Green, Red, and Black (if I remember correctly, sorry it's been a while since I've done this).  The wires were all of the same general size except the black wire, which was significantly smaller than the 360 controller's black wire.  A little bit of electric tape and a some patience and I had it all sealed up and "repaired."  Plugged it in and it seemed to work just fine, but I was worried about the difference in size between the black wires.

 

So, my question is: is this safe to use?  I'm not worried about the controller, I'm worried about my computer.  I don't want it to short something out.  This may be a very basic question to those who know what they're talking about, but as I said this is the first time I've messed with a repair like this.  I've included a picture just in case it helps.  Thanks in advance and sorry for any trouble I caused with my ignorance about forum stuff!

[Mira Yurizaki]

If the power lines are shorted, then chances are it'll burn out the USB hub and that's it. If it's a more advanced USB controller, it'll have short circuit protection (though I think most of them have this anyway).

 

Taping wires together isn't exactly ideal, but as long as they're separated with a good amount of padding, should be fine.