To add a reverse camera to my VW head unit without paying daft VW prices I used this loom:
Add a reverse view NTSC camera to select Volkswagen vehicle models with Composition Media/Discover Media (MIB STD2 PQ/+NAV) systems. This interface is a camera add on kit which allows you to add an aftermarket rear view camera whilst retaining the use of your factory head unit. This harness has...
incartec.co.uk
With this camera:
★ 18 gear of torque with clutch to protect screws; 1 gear of drill is deal for drilling. 18 Set Position with Clutch to Prevent Stripped Screws 1 x Cordless Drill. ● Drill iron: 10MM. ● Drill bit clamping: 0.8-10MM.
www.ebay.co.uk
The results are great, plays nicely with my parking sensors, the music quietens when reversing as before, and the picture quality in both day and night is as good as you’re ever going to get on these Disco screens.