Hi everyone...first post so be gentle!
For a change, it's nice to be able to offer advice rather than ask for it...for those contemplating the purchase of the Silverstone 7860 - beware!
I bought one in June, by the end of the month it was u/s, it took caraudiodiscount.com until the the end of August to decide to return it for repair to Germany. To date I have been unable to "persuade" them to chase up the progress of the repair - poor.
It also seems that around 10% of the 7860 CD changers will experience "software compatability" issues when used with the CDR-22 head unit (sounds as though some already are) This snippet of info came from Beckers UK distributor. Their advice, reading between the lines, is to avoid the the 7860 if using it with the Porsche head unit.
A good alternative is the Becker 2660 6 disc changer ,which I think is the same as the CDC-3 Porsche equivalent. These are not readily available but can be bought s/h....I bought an "as new" one from ebay for £150, the build quality is far more substantial the newer 7860, and it just "plugs in" as normal.
Caveat emptor!
Jackie