Hi,Im interested in your product 3g gps tracker 209 With CE ROHS FCC Certificate WCDMA, I would like some more details.I look forward for your reply.Is this difficult to install? Does it work with any vehicle? Does it work for automatic and manual transmission? How does the unit communicate do we install our own SIM card?If we buy 20 pcs what is the cost per pc?Thank you!!Regards,Adam Von BuhlThis Message is from mobile Show More