Picture of Adding a PowerPort to Mid-Century Van Doghouse
Old vans have a lot of character but not too many comforts or modern conveniences in their stock configurations.   One thing my 1965 Econoline lacked was a cigarette lighter / powerport or the hole for one on the dashboard.  It was not part of the original package.  Rather than drill an ugly hole in my otherwise flawless dashboard I decided to make use of one of the existing "mystery holes" that someone had drilled into my doghouse during the past 47 years for unknown purposes. 

There are 2 advantages to having the port in my doghouse:
1. My phone usually rests on top of the doghouse while I'm driving so the wire doesn't need to stretch across the cab from the dash creating clutter.
2. It is very easy to tap into the hot lead from the horn relay, or other power source, to power the plug... and the dog house is already grounded so the ground ring doesn't need a wire.

I made it at Tech Shop  where I first discovered the beauty of the Step Bit .  http://www.techshop.ws/
They have a fantastic collection of useful tools.  Here's what you will need

0. Auto Powerport / Cigarette Lighter Assembly
1. Step Bit
2. Power Drill
3. Soldering Iron & Solder
4. 14 - 18 Gauge wire

Lets get started...
thesavo1 year ago

The "doghouse" you are referring to, Is this the dash cowling between the front seats? Is this the cover you can remove to access the rear of the engine for maintenance? Good job finding a spot that is deep enough for the socket. You will want to bundle your wires so that nothing snags on them. Also, adding a connector near the rim of the housing would be good. This provides a easy disconnection means when removing the cover.

Would it be possible to modify a modern car in this manner?
Sure. You just need to find out where a good source of 12 volt power can be accessed without doing any damage. These old cars are fairly primitive and raw exposed 12 volt sources can be found in numerous places. The newer cars get the more complicated their electrical systems are, eventually incorporating computers. I'd say the best way would be to run a wire from as close to the battery as possible...unless you are really good with wiring diagrams and feel confident you can open a bare wire somewhere and splice into a 12 volt line. The other problem being whether your want to port to be always on or switched by your ignition. That's another issues where the wiring diagram is necessary.