Hello from Uganda! So I got this dream car from Japan and it came without the SD card. The seller advised me to get it from the local dealer who doesn't even pick up their calls. In any case, reading the posts here I can see local dealers are either unhelpful or a total rip off. So I really want your advice on two things: which card to use and whether the radio needs a PIN to get started. Help a lady in distress! Thank you all in advance!