Custom DRLs for 2K9 Taco

So my truck came with some custom HIDs already installed, and I'm doing the rest of the bulbs in LED to complete the look. I got these nice looking 4157 LED bulbs for the front turn signals that are amber for turning but light up white for DRLs. They don't ever light up during normal driving so I'm assuming I don't have the DRL relay.

However, I'm looking at the sockets for the bulbs and they are only 2 wire. The write up for the DRL relay says it will keep a standard bulb lit up amber while driving, so that won't help me. I think I need 3 wire sockets, but do they exist? Or can I add a 3rd wire to the existing sockets? There seems to be space for it. Anybody done this before?