First read and observe the introductory
information and safety warnings
You will need an external aerial to use a two-way radio in the vehicle.
Any retrofit installation of electrical or electronic equipment in the vehicle will affect its vehicle type approval. Under certain circumstances, this could mean that you might lose the type approval for the vehicle.
Volkswagen has approved the vehicle for use with two-way radios providing the following conditions are observed:
An external aerial is needed to give the equipment its optimal range.
Check first with a qualified workshop if you wish to use a two-way radio with a transmitting power of over 10 watts. A qualified workshop is familiar with the technical options for retrofitting. Volkswagen recommends using a Volkswagen dealership for this purpose.
Please observe legislation as well as the instructions and information given in the operating manuals for radio equipment.
WARNING
CAUTION
Volkswagen Touran Owners Manual. Frequently asked questions
If you suspect that there is a fault in the vehicle or if your vehicle has been
damaged, read and observe the following information before contacting
a Volkswagen dealership or qualified workshop. You may also find useful information
in the index under the headings Things to note or Checklist. ...
Volkswagen Touran Service Manual. Aqua Premium Application Instructions for Water-Soluble Products
When working with water-soluble products, pretreat the base
surface very carefully and only with water-soluble products and
the recommended processing materials.
Base Surface
Pre-treatment of base surfaces:
...