Hello TH,
Right you are, and right you are.
Purchased this product from Radio Shack:
12VDC Car Power Accessory Outlet
Model: 270-1556 | Catalog #: 270-1556
https://www.radioshack.com/product/index....rentPage=family
Very simple installation. Hey I did it, right?
Negative car, black wire to ground, red wire to ignition wire. Why ignition wire? GPS will turn off when I turn the car off. (I sometimes...alright, most of the time, forget to turn the dash/headlights off at night, when I remove the key). As I'm walking back to my car, look, some idiot left his lights on. Hey, wait a minute....
I screwed mine under the dash, drivers side. To the metal top that is under the wood dash top. Completely out of sight. I keep mine hard wired, for my GPS is permanently installed behind my speaker grill.
There are many places you can mount it, for ease of access.
Some where under the dash.
Behind the center consul. Just reach around and plug it in.
Be creative and mount it faceing forward, behind the speaker grill or radio blanking plate if they are not being used. Use magnets to hold the speaker grill or blanking plate in place if you go that route.
I love the James Bond gadgets.
Everything I install in my car is hidden, but easy to get to. Example:
Rather than paging though the touch screen on my Garmin GPS/MP3 player to raise or lower the volume, I spliced in a volume control. (Spice was done in the wire that goes from the unit to the computer speakers). Sometimes old school is easyer. A simple rotating knob. Wanna see where I installed it?
Good luck with your power outlet installation TH.
Happy Motoring!
Roger