inputs.text: universal gps hud head speed display kmh mph it8012a coolest affordable car accessory - universal gps hud head speed display kmh mph speeding warning plug it8012a worked soon plugged cig lighter onoff button power plug goes cig lighter socket great idea hud comes reflective tint spot windshield opinion way big thinking half even quarter size send would work better say reflective tint pretty dark hud generally pretty high windshield glass move hud unit far forward lower display much seehems work really well currently use hud unit vehicles currently driving portable unit working famously well reason let hud reflect bare glass however allow ghost reflection second glass surface appear not really bad especially day seehems brighter night even adjustment angle hud device faces glass lets hide ghost reflection actual first reflection not really notice much changed cars years ago automobile traded digital mph display really liked replacehement car analog meter type display missed digital display lot device gave two great advantages oehem dash first enjoying heads display window could simply glance see speed not realize much strain use oehem dash speedometer drove hud device difference would recommend anyone trouble seeing dash speedo second advantage device no influence fast car actually moving report speed speed determined gps satelites accuracy far better oehem speedo especially changed tire sizes years put car immediately went looking one portable police radar speed monitoring signs lol big convenience built hud speed displayed adjusted accuracy however speed display indicates found quite accurate car not come digital display dash way better hud mph window easy eye sight much better much easier seeread thing would like see manual adjustment brightness digital display eye dim display night still seehems brighter would prefer thats preference not think hud units manual dimming function may experiment tint display dim brightness bit opinion coolest thing add car not lot money would make cool gift itehem someone almost everything everything checking speed much easier actually cool glancing window dash small foot print hud unit not really obtrusive unattractive dash gives accurate gps sourced speed visual actual time use check speed accuracy vehicle portability said actual time start takes fraction second logorythms figure data review update still pleased gps speedo fact dash lighting went pickup truck unit saved day watched speed windshield note worth mentioning buttons not best occasion may stick button sticks make gps stop functioning make interesting button stuck look like normal position unit not working turn press buttons determine button stuck help button come back release switch let speedo work also issue car battery go dead car began run gps speedo would not work unplugged days plugged come online working unplugg unit drain residual power kill random mehemory would work alls good thumbs 07242014 think everyone one fun heads display mph especially trouble seeing speedo dash