Mine's a '12 SRT, and the CANBUS bulbs fixed the problem for me... Can't tell from your post what Year / Model you have. Maybe a slight change to the electronics or wiring ?Yeah, I asked about the CANBUS compatible bulb, this is what I got back:
"The extra resistance in a CANBus bulb puts enough load so the computer in the car knows that there is a bulb in place and is functional. With that being said, there may still be the issue of voltage leak happening due to the small power required to operate the light."
So if I want these to work properly, I need to lose the CANBUS compatible bulbs and add the resistors to the 4410-CW9 bulb. This information would have been a lot more useful before I placed the second order for a bulb that was supposed to work with this system.
I have my car on a Battery Tender (winter storage) and I just checked a few measurements. The battery voltage is sitting at 12.9 V. I measured the stock map light with my Fluke - just using the battery in the rear (didn't want to pry out the bezels again as I didn't want another chance to break something...) and it drew 795 mA. I borrowed the 4410-CW9 bulb from my Jeep and put it across the Challenger battery. It drew 37 mA. A 680 ohm resistor will draw 19 mA at the same 12.9V. Add that to the 37 for the LED bulb and your draw would be 56 mA for the LED bulb with resistor in parallel.
Still more than an order of magnitude difference from the draw of the stock bulb, but maybe just enough to get things working. Definitely worth a shot...
Best of luck ! Hope it all works out... Keep us posted.