I have the "USB-C Digital AV Multiport Adapter." But sometimes I also need to connect to VGA, and I don't want to spend $80 on the other adapter from Apple. HDMI to VGA converters are $5-10. But it seems they don't work, or some don't work with Apple's adapter. The question is: has anyone successfully connected to VGA through the Digital AV adapter? Or found a cheap USB-C to VGA adapter?