Sat Nav or Gps ( Global Positioning System ) Was made by the U.S Department of Defence.
It became fully operational in 1993 and it was inevitable that it was going to be used to help us navigate are way. There are between 24 and 32 Satellites in orbit which allow gps enabled devices to gather a navigational fix along with time and current velocity.

Below we have some of the Best and most up to date systems currently on the market.

Sat Nav

	RENAULT SAT NAV DISCS	£20.00	15m
	7 In Dash DVD CD Player Car Audio+GPS Navigation SatNav	£259.00	15m
	Tomtom One V4 V5 30 Pearl USB Dock Mains Home Charger	£3.49	16m
	Becker Traffic Assist Highspeed 7934 Automotive GPS Receiver	£35.00	16m
	NEW TomTom Car Kit for iPod Touch 1st 2nd & 3rd gen GPS SatNav Cradle	£24.99	16m
	NEW Genuine Garmin Sat Nav Travel Pack for Nuvi 1200 1300 charger, cable, case	£12.99	16m
	TOMTOM SAT NAV CASE NEW IN PACKET JUST THE CASE	£0.99	18m
	Garmin Colorado 300 GPS Receiver	£62.00	20m
	VODAFONE KEYRING RECIVER 51 CH. BLUETOOTH GPS SAT NAV RECEIVER 4 LAPTOPS MOBILES	£4.33	21m
	TOMTOM ORIGINAL BAG--	£10.00	21m
	TomTom 510-710-910 Genuine HOME USB DOCK AND CHARGER	£9.00	22m
	NAVTECH GPS SAT NAV OPEL VAUXHALL CDR GB AND IRELAND	£9.99	25m
	Navigon 2310 Automotive GPS Receiver	£30.00	27m
	Garmin etrex GPS	£41.00	28m
	IN CAR CHARGER FOR NAVMAN F37 F37M GPS SAT NAV 12v 24v	£2.95	29m
	Tom Tom	£14.99	31m
	NEW TOMTOM ONE XL V2 Replacement Fascia Casing Bezel	£7.90	32m
	New Realtime GPS Tracker Children Elderly Car Vehicle Tracking Locator SOS GSM	£379.90	32m
	Mio 269 269+ PLUS Car Clip Vent Mount Holder Kit	£4.99	33m
	Mio C710 DigiWalker Car Clip Vent Mount Holder Kit	£4.99	33m