hi guys,
thought to share with all you guys. I asked my installer about the susbstitute to ND-BC1 as many people here are complaining about its malfunctioning and price is high too , anyways the installer actually said that KENWOOD CCD-900 is a better camera than nd-bc1 and gives a far sharper picture and is compatible with AVIC Z1 . now the most important thing. i bought it for 125$ shipped which is far less than what you pay for ND-BC1 plus its a kenwood a name in itself what you are buying. i bought it from a established ebay powerseller , its listed for 144 plus shipping but submit best offer for 105+19.99 for shipping and you end up getting for 125.. :) so here is the link below from where i bought. just felt like sharing info as i got to learn a lot from this forum so a small return .will be glad if someone can save some bucks, enjoy

http://cgi.ebay.com/KENWOOD-UNIV-REAR-V ... dZViewItem

Cool, thanks!