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Hi everyone!

I have a Smart Fortwo Pure 2013,I recently decided I wanted to upgrade my sound experience in my car and replace the ancient looking OEM stereo. I've never done any kind of upgrades like this before so I'm a little nervous especially after reading conflicting info online.

I got a cheap $45 touch screen double din head unit off amazon with backup camera, $30 BOSS speakers, Bracket, wiring harness for smart, and radio adapter.

Do I need to disconnect the battery first or can I just have the keys pulled?

So I've read some conflicting stuff about the wiring harness and that concerns me a little bit, what should I do for the wiring? Can someone please provide a link to a wiring diagram for a 2013?

What should I do for the backup camera wiring? I'm not sure what to attach the ground wire to at the camera end? Also where should I attach the camera? I'm almost tempted to leave the camera out of the equation because it doesn't seem like it would show me more than the basic view I'd already see by looking behind me...

Also is it ill advised to replace the speakers without taking the door apart? I was tempted to follow this video and just drill them in from the outside:


Any help is greatly appreciated! Just figured I'd ask around before diving in head first into this...
 

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There's a ton of info in this 451 Audio & Video forum on adding aftermarket systems. Take a look at the threads and you should find answers for your questions. :)
 

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^^^^^Ditto to the above comment. Do a search.

You disconnect the battery, before doing any electrical work on a vehicle. Crutchfield auto, has equipment installation diagrams, for all cars sound systems. Wiring harnesses too. You might want to contact them. Cost you $9.00.

 

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  • you "should" pull the battery, but I didn't... (kinda forgot batteries existed) and had no issues.
  • backup camera, I wouldn't bother. If you decide you n e e d it, then I'd get a wireless kit, and one of the cameras that mounts to and replaces the lens for the license plate light. Nicer looking. But I didn't find the need to bother with it tbqh.
  • radio harness, you'll just want to adapt from the ISO standard plugs smart uses (pinout on wikipedia) to whatever your head unit uses. BEWARE: theres a decent chance that the 12v switched and 12v permanent lines are swapped. So if your radio resets itself every time you shut the car off, that is why, just swap those 2 wires. Might be easier to pick up the harness adapter on crutchfield, if your smart didn't come with an aftermarket head unit to begin with (mine did luckily :p)
  • I'd try taking the door apart before just going ham on the interior. The right way is the right way for a reason. If you really can't get it going, then as above comment says, just grab the crutchfield doc on it, they're good guys, who thoroughly research the right way pretty well (usually by actually doing it hands on, iirc.)
 
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