I was under the impression on the Sds200 you only need the puck and ther telephone jack cable ??? Not the complete kit..please advise
The Uniden CB-GPSK GPS puck is all you need for the SDS200, if you can get one..... they're not always available. I bought several of them when they first came out and they work great for my SDS200s. That puck is only compatible with the SDS200 and the BearTracker 885. If in the future you purchase some other Uniden scanner with GPS capabilities, you will need to additionally purchase the BC-SGPS kit linked in post #2 above.
A lot of sources for the CB-GPSK GPS puck say that it has been "replaced by" the BC-SGPS kit, but as of this post the Uniden site seems to have them in stock (at least I was able to put it in my cart and make it to the check-out screen without any "no longer available" warnings).
CB-GPSK provides a simple solution to connecting a GPS to your Uniden SDS200 or BearTracker 885. Product Overview Accessory GPS for the BearTracker 885 and SDS200.
uniden.com
If you search through the forums, you may be able to find some DIY instructions and cable pinouts for 3rd party pucks that might be adapted to the scanner with some home made cables etc.