Seems like Kenwood is 4 ohm, the only 2 ohm speakers I could find are here: https://www.amazon.com/Powerbass-L2-652-Full-Range-Coaxial-Speakers/dp/B00SQFS7P6/ref=sr_1_1?ie=UTF8&qid=1547325295&sr=8-1&keywords=PowerBass+L2-652

Notice any issues with limited volume with your Kenwoods?

Also did you buy just two speakers for the front doors or replace all four speakers?