It's interesting to see that the package on the bulbs you've linked, say "for off road use only". I wonder what the deal is there? I assume these bulbs are dimmable, correct?
If you use ALL led bulbs in your dash, the dimmer will not work because you are not pulling enough current. I left incandescent bulbs in my aftermarket gauges to get my dimmer to work. If you left the incandescent bulb in your radio, that would be enough.
I think DC low voltage led bulbs are usually dimmable.
