OK I've almost got it....took me a while but I have it all figured out. Just 2 issues left.
1. When I search it seems to be searching using a contains search instead of exact match so when I search for item number 19 it give 119 as well. How do I stop this.
2. also when I choose my category it will populate the brand list but I lose my "please choose a brand" default message. How do I stop this from happening?
Here's the site address for reference
Thank you for your help!