Hvac knobs and gauges use 194 and 74 style leds. Everything else needs to be soldered. By the way, the headlight switch was the biggest pain for me. I suggest getting a spare to work on so you don't screw up yours.
04 ZX3 RIP [Best Non-SVT FITF12][3/13 ROTM][7/14 ROTM][2014 ROTY][Best Engineered FF14]
01 SE V8 Estate [Organizers Choice FF15][2nd Place MK1 Class FF16]
02 SE SVT Wannabe
02 SVT Future Project