I have a sick feeling that we (I have these too) don't need load resistors. We need current limiting resistors. 99% of these little LED replacement bulbs we use for interior lighting are not "Pre-wired". Meaning they don't have limiters installed as bought.
I recently installed a red LED in the little panel in the map light assembly. My daughter has a 2009 VW Rabbit and when driving at night, there is a very subtle glow illuminating the center console. I like it. I bought a 12VDC "Pre-Wired" LED, low LUX, and installed it. The Chinese LED's in the overhead lights I have blink when I open/close the windows. The new one doesn't.

(OperatingVoltage - ForwardVoltage) / Current = ResistorValue

Example:
(13.5 - 9.1) / 0.5 = 8.8
13.5 volts was used as the Supply Voltage,
9.1 Volts was used as the Forward Voltage, of the LED module I'm using,
0.5 was used as the LED operating current,
8.8 Ohms was the resulting value of the current limiting resistor.


Try a 10 ohm-2 watt resistor. Should limit it to ~25 mAmps.

BTW-the very low red "wash" on the center console is perfect. Doesn't affect night vision, but lets one see where everything is. Just what I wanted.