My classic car insurance company requires a Thatcham approved tracking system to be installed in my car. One of the classic car magazines did a feature on a Category S7 system (Trackstar TM470) which is Thatcham approved. I have read the manufactures sales information and the specific installation instructions which are straight forward. My question is, am I allowed to install one of these systems myself or do I have to purchase a system via a third party alarm installation specialist? My concern is that in the past I have owned various high-end cars that I have had to rectify bodged installations of radios, navs, telephone and alarm systems all done by auto electrical businesses.