Guys I've got a strange issue that I've never seen before.

I killed my old DIY ALDL cable that was great for about 4 years by soaking it in coffee and then accidentally sending it through the dryer. Had to order a new FT232.

with the new FT232, if I leave it plugged into the ALDL socket but don't have it attached to my phone, the FT232 still lights up. I've never seen this before. I assume the ALDL socket provides power, but my old cable never lit up showing power when attached just to the socket.

Can I fix this with just a diode on the ground wire?