Backseat USB Charger

After all the feedbacks, I've added these warnings:

1- do not attempt this if your car has side airbags imbedded in the seat

2- make sure your back seat has sufficient room, so the 12v adaptor is not poking your neck/back area.

3- add an inline fuse, if you see yourself using it a lot.

Finding myself having more ipod/pad & phone devices on the road, I needed more charging options in the car.  Auto part store sell these multi-socket adaptors, but I like a cleaner solution with less wires showing.  

Material needed:

- Female cigarette adaptor
- Power car seat with removable access panel, of cause.
- Socket wrench with extender.
- Any wiring that's rated for 12v or more.
- Terminal connectors or soldering iron
- Spiral cutting tool.   I use my trusty RotoZip.
- volt meter
- A spacious, well lighted working area.

Pick the seat you want to hack and unbolt the floor railing.  Disconnect all electrical wirings to it & move to a well lit working area.

While you're down there, *** Find ** which wire/leads are the hot one (see step 4) with multi meter.

Remove back panel.  See if you have room to fit the cigarette adaptor in the seat cavity.  You may need to remove some foam materials.  I pick mine higher up, just below the head rest.

Now the fun part:  you need to find an existing source & tap into it.  We picked the power seat motor just because the pin connectors were easier to remove.

You need to find which is the hot wire & match with existing lighter.  We stupidly didn't do that back in step 2, and need to put the seat back, power it to to find the A/C leads.   Live & learn.

Temporarily, connect everything & test for charging.   Hopefully, everything should work & no shorts.

 Install is the reverse process.  Enjoy your new charger.