I bought these AUXITO LED bulbs for my 2014 Tacoma thinking I may need to buy a wiring harness, however this was not the case. These were direct plug and play. The lights had a plug tail that slid in perfectly to my old connectors. The lights were not hard to install once I had my headlight housings off. I didn't need to adjust the lamps at all and once I test them out at night I was amazed at how bright they were. They blew my old oem bulbs out of the water.
https://www.auxito.com/pages/parts-and-accessories-for-toyota-tacoma