Don't have a set up currently but I remember seeing someone using a localhost website to view the in game radar.
Would it be possible to do that? If so who provides the chair for that and can I use that link on an iPad on the side for example or does it have to be on a pc?
The link for the web radar must be sent to you by someone who has the DMA. You can use it wherever you want, but you will always need a player with a working DMA.