I made my own Autostar -> PC cables (like the Meade #505 set that sells for $25 ... except mine are 15 or 25 foot cables!). This connects the Autostar to the serial port of your PC and will allow you to download firmware updates or additional object data and can also be used to control the guiding functions from your computer ... if you have the proper software package. These cables will work for all those with #497 or 495 Autostar controllers ( Meade DS, ETX, LXD55 and LX-90 systems ).
I made several extra sets and have 3 remaining ( 2 - 25 feet and 1 - 15 feet ) ... offering them here for $13.00. This includes shipping in the CONUS. I will accept personal checks, money orders or PayPal. Thanks!