Please check out this video / audio.
I tried to capture the noise with the view of the road and speedometer. Is that noise from the tires? The noise is modulated with the speed of the car. I've had this for some time but recently I got the tires rotated and it seems a bit more prominent. Is it simply tire noise? Or could it be the bearings ?
The tires are not new and they are Pirelli Scorpion Verde All season Plus XL. According to dealership they have about 6mm depth from the last maintenance service less than a month ago.

RDX 2017 Tech AWD

 

I think that could be a wheel bearing. Had to replace my rear wheel bearings at 125k. How many miles are on your RDX?

 

Mileage about 87k

 

It is clear that the problem is in the tires. Bearings make a hum, not a wobble noise. Swap the rear and front wheels and the noise will change the place.

 

How many miles on the tires?

I just went through this with my old tires, Kumho Crugen Premium. They got noisier as they wore. It became obviious with a tire rotation. I just replace the tires and it feels like driving a new car. I had 52k on my old tires. They started getting noisy around 38k miles.

Either way, I would get it checked to make sure it is not a bearing.

 

Tire has about +45000 mile.

Yeah it is a wobble sound. I’m under the impression it is tire noise also. I do remember reading on the tire rack reviews that these Pirellis make a road noise but didn’t realize it was this bad.

As long as it is tire noise I’m good knowing it

 

How many wheel rotations did you do during those 45,000 mile?

 

maybe 2.

 

I can't say for sure, but it might be the cause of the trouble. Usually tires should be rotated every six months or 6,000 to 8,000 miles, at least 10,000 miles. Also, the condition of the suspension also greatly affects the correct wear.

 

After a tire rotation, I noticed the road noise increased. It gave me the confidence that it was road noise and not a wheel bearing. Plus I'm sure my mechanic checks for that during the regular service.