hi just wondering does anyone know how the amps wiring works through the heated rear srceen as ive recently had a new rear screen fitted and it hasn't got the wiring pionts on it and now i'm getting a error message on my radio sayin unable to connect rds-er. is there anyway of just wiring from the positive + negitive terminal points am if so what thankyou

 

hi i have an audi a6 2001 model i carn't get the satnav to work properly it loads destination but then gets lost within 100 yards and freezes and then from time to time find its self again and runs for another 100 yards and does the same thing again.ive looked in the gps settings and it has located 8 satalites out of 28 am i connected to enough.the navigation systen is the cd type with screen not the dvd please can someone help thankyou