1- Whether placing an aftermarket sat-nav on the dash is a good idea
2- If so what is the best sat-navs others have used
3- What are the best value sat-navs
4- Which ones to avoid
5- Obviously how to do it
6- Consideration of using phones and apps etc
Thanks in advance and if anyone can point to threads that cover most of these questions I'd be grateful for all support
-Chris, Sheffield, England, UK
