i used one of these with an aftermarket tv before i fitted the hybrid oem one, it works but can be a bit directional, sometimes had to manouvre the car round till it hit a sweet spot
using 2 if you have the inputs for it would work better, or wire them up together or just wait till we get a final switch of off all the non digital channels and they should then be able to turn the power up and digital will get better.
i fitted mine on the rear screen and hid the wiring in the headlining as you proposed, was barely visible.
__________________
 ______________________________________________
A8 4.2TDI - Ice Silver, Comfort heated/cooled/massage Seats, Alcantara, Extended Leather pack, Ambient light pack, Solar roof, Night Vision, Lane change assist, Audi presense, Audi BrakeGuard, ACC Cruise, Blinds, Quad Air, AMI, Online services, Parking with rear Camera, Aluminium brushed inlays, Adaptive Zenons, High beam assist, Bose Sound, and more
Gone but not forgotten: A8 D3 2005- AMI HDD, Audible Parking, TV, NAV, Bluetooth, Hybrid TV, Aftermarket headrest monitors, Rosstech VCDS / Vagcom
|