Im going to be buying a Sportster 5 ($99 Cdn at BestBuy) to replace the older Sportster Replay (SR) in one of my cars. I have a couple of questions I was hoping y'all could answer for me. 1) I assume I will need to install the S5 car dock (and remove the old SR car dock) but can I just use the old antenna? I'd rather not pull out the old cable and install the new one if possible. Is the connector pin/jack the same for the antenna? 2) My understanding is that the FM transmitter on the S5 is weaker than that on the SR. Can I still just use the FM transmitter or would people recommend that I install an FM direct adapter? I'd rather not have to install the direct kit if possible. Ive never had an issue with FM radio station signals in the city (Toronto) overpowering my SR FM transmitter, but I dont know if this would still hold true with the weaker S5. Thanks!