Hi Patti,
Sounds like a good idea running your GPS power wire index the dash and out the ash tray. My only caution would be to be sure that the power cord is readily removable. Don't route it so cleverly that you can't get it out easily. The reason is that if you need to use your GPS in another car, for whatever reason, (and there always seems to be one,) then you can make the switch in a hurry and without much fuss.
I have a 7" Garmin Nuvi 2979 with traffic and lifetime maps and it's awesome!
Mike M

Sent from my iPad

> On Jun 18, 2015, at 16:15, PB <pbrattan@GMAIL.COM> wrote:
> 
> (Simple pleasures!)  My 2010 GPS didn't have lifetime maps.    If I were to
> purchase lifetime maps now for my 2010 GPS, it would cost nearly as much as
> what I paid for this brand new GPS
> <http://www.buydig.com/shop/product.aspx?sku=GRNUVI2597LMT>.
> 
> Besides its features (BT, receives voice commands, etc,) I like that the
> mini USB port is located behind the GPS, and the fact it can sit right on
> the dashboard, using the suction cup as a stand.  I'd like to install an
> additional cigarette lighter plug hidden under the dashboard with the
> unit's mini USB cable accessible through the ashtray, so the charger and
> its wire (necessary for traffic info) would be hidden.  The "hidden" cable
> would be stationary, but I would remove the GPS unit while parked and keep
> it out of sight.
> 
> Are there any directions on where I would start?  (I have modified and
> replaced parts in computers, but that's about the extent of my wiring
> skills.)   Should I try to "go for it," or just take it to a shop?
> 
> Patti
> 90 Westy Automatic
> Los Angeles
> 
> *♪♫**♥**♫♪♪♫**♥**♫♪♪♫**♥**♫♪♪♫**♥**♫♪*
> If it's not on my Smart Phone, it doesn't exist...
> ●▬▬▬▬▬▬ஜ۩۞۩ஜ▬▬♥▬▬▬ஜ۩۞۩ஜ▬▬▬▬▬●