Originally Posted by Shov3BR
You can't go directly from SAE to USB due to the voltage difference. USB is 5VDC so you need a voltage regulator to get from 12VDC down to 5VDC. That's what the TAPP Lite does.
I thought that might be the case. What about your work on the sae to Tapp Lite, how is that going or could you just make up an sae to Tapp Lite with short lead as I saw you posted before. I just need to go from an sae plug I have near the bars and then a short way with a usb pigtail to operate my Garmin.