Tips and Tricks As there are a lot of bolts than need removing during this install, use a supply of small coin bags to keep the bolts for each area together and label the bags accordingly. This document shows a step by step install of the RNS-E into an A4 for that has been fitted with a single DIN stereo. With the help of ebay these sat nav systems are now available to by at a rough cost of 650 plus the cost of all the other parts that are required. 1 As one of the major options on the A4 you can get a DVD Satellite Navigation System call the RNS-E.
