RadioShack 1415 Main St, Watsonville, CA95076 If you need electronics, RadioShack has you covered. It has a full line of cell phones and plans from major carriers as…More well as home electronics like stereos, MP3 players and TVs. It also has all the supplies for the do-it-yourself person. You can find batteries, headphones and lots of electronic gadgets and toys in this large store. The expert staff can help you find the right part or tool for the job. You can also order online for in-store delivery of hard-to-find items. It's located in the Staples shopping center, next to Starbucks.