hi there,

so bit of a background - have a 56 plate passat with RCD500 6 cd changer currently fitted.

challenge - i have read gazillion posts confirming battery drain issues when upgrading pre 2007 (some says pre 2008) vw models to RCD 510. Just wanted to confirm and invite those who have fitted these that it is a must that one should upgrade the CAN Bus? I have heard on some forums that those with 2006 or 2007 models have upgraded to 3rd gen without any problems whatsoever. Some also says that RCD510 just needs software upgrading before fitting to avoid drain.

looking fwd to hearing from someone!

ta
rp