The Sirius Stratus, Stratus 4, and Stratus 5 radios have been discontinued. These were popular radios for their durability and simplicity.
The good news is if you are looking for a replacement radio the Starmate 8 Standalone Receiver will fit in the same docks and boomboxes. We may be able to do some repairs on your Sirius Starmate 3 and Sirius Starmate 4 radios depending on the situation, just check out Repair Page for more details.
The following Kits and Accessories for the Starmate 3 and 4 are still available
Replacement Docks, Antennas and Power Cords can be found using our Satellite Radio Parts Finder