How do I reset the oil change warning with aftermarket stereo

I replaced the factory stereo with a better (Bluetooth, etc) stereo and now its time to change the oil (the warning ding keeps going off). But, I cannot find anyway to reset it after I change it without the monsoon stereo (which is no longer installed)??

I tried the "push the gas pedal" one, which didnt work.

I am not getting a warning light, but I know it would be at the 0% on the stereo reading, if it was still installed.

I am cautious to take it to a plain oil change place because they might not be able to reset it, then I would have to go the dealer and pay an arm and a leg for a stupid fix. Or at least what should be a quick fix.

I appreciate any help.

Thanks,
Don