whats the diffrence between solo,multi,blade idatalink?????which one am I suppose to get, I bought viper 5900 alarm?http://www.idatalink.com/searchresul...,AL&f=PL,WD,PG

should I go with, I was thinking Solo ADS-DLSL CA2?????

Once I get it do I have to update firmware or does it come updated already I have a 2005 Acura TL ??If you go to the actual website their pretty expensive any other website that might be cheaper.