first off you can access the Turn signals from the wheel well.
You will need a t15 torx bit to remove the 3 screws from each side.
FInally turn the wheel inword on the perspective side to gain more access.
The bulb is directional which means turn the hazards on and insert the bulb. If it doesn't light up remove and flip it. The load resistor is simple as well All it does is mimic a normal Bulb which has a resistance of 6-8ohms. Now the precaution is the resistor will heat up. so make sure it is clear of anything that could get burned. For my load resistors are mounted to a screw that holds the LED DRL heatsink in place. Perfect place One large heatsink.
the load resistor basically gets connected to the Two wires going to the turn signal wire. One wire is ground, the other is the signal or positive wire. My resistors are soldered because I don't like the t-taps that come with them. But regardless they work too just have potential on cutting wire. the other way you can do it is . Strip the wire back twist the resistors wires around and then use a good tape to cover. Like 3m Super 33 available at most autoparts or homedepot.