Im a person that usually holds onto all the product boxes(well atleast car products) and that paid off when i had my stuff jacked, I could proof to the lady wit ht he boxes of the sub/amp/radio, and all that, I even could prove with some picture i took to psot on here a while ago, also try and hold onto all your reciepts.. This will all help with the insurance claim, if you goto make one, And a FYI- Most insurance companys wont cover it unless its bolted down, I hada tool box that was also stolen, it was 150pc Craftsmen, but they couldnt cover it since it wast bolted down. Also dotn even try getting CD's covered.... if they stole yours, liek they stole my 200+ collection of cd's, Theives SUCK!
BTW what kinda system you have? The system i had was crappy, but they still wanted to steal it, my old system was a Walmart Pioneer,Walmart Box, and a Walmart VR-3 amp, whole thing cost under a 100$, and i didnt even buy the sub or box, and friend gave it to me.....
Hope you get everythign resolved...
-Caleb