I have a 2002 and want to get XM radio. The two options are a dealer installed for $600 which will be integrated with the radio or an aftermarket unit from a Best Buy etc. This unit will be placed most likely in the top center console. Greatly appreciate feedback from anyone who got either of these.

Thanks!!

The same integrated XM radio kits for the SC430 are on ebay or direct from VAIS for about $260 --> http://www.vaistech.com/products/sl2xmt.php
There was a thread on another forum where someone installed one in his SC430 and I remember that he reported favorably on the kit.