seeing as your questions have gone unanswered, may I strongly suggest you join Club Touareg - Volkswagen Touareg Owners Community
There is a wealth of information there, from members who have experienced just about all there is to experience/know about the 'Treg.
MY08 Touareg 3.0Lt V6 TDI/Atacama Grey/RNS510/Colour MFD/Front-Rear Sensors/Chipped/OEM Towpack/Tint/Premium Bluetooth/LED lightbox/Prodigy Brake Controller/2nd Battery/2x12v dedicated power supply
2008 GOLF .:R32 ~ 5DR DBPE DSG ~ SUNROOF ~ RNS510 ~ PRIVACY TINT ~ CONTI SC3s ~ MILLTEK CATBACK NON-RES ~ AUTOPOLAR FIS+ ~ "MYR-032"
2010 POLO 77TSI 5DR FLASH RED DSG MDI/RCD510 SPORTS PACK, + MORE "MARCCO"