Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
This is the only suggestion. If you have a windows laptop.
By far the best option for a commodore. Also can reset airbags that no other cheap option can with additional software for $50.
I have to used my cable and software on multiple commodores with no problems.
Tazzi is a forum member and created this product, highly recommended.
http://www.envyouscustoms.com/