Connect the GPS antenna to a clear area under the dashboard for better signal reception. eBay product page
If you are looking for an official PDF, users often request digital copies from specialist forums or JustAnswer as the manufacturer rarely provides a public download link. JustAnswer or help with a specific software setting on your unit? JBY-6201 Installation Manual & FAQs | Expert Answers 11 Apr 2019 —
Most JBY-6201 units support 95% of protocol box manufacturers, but you may need to map the buttons in the "Steering Learn" app located in the unit's settings. 4. Troubleshooting Common Issues