I think you misunderstood my post. My wife wanted cloth. I have no need to add leather. Why would I pay 6-7k more for the Touring trim and then pay more to replace it with cloth. Once the solutions come available, I can easily upgrade the desired components for less than the difference in price for the Touring.
Because you want features in the Touring trim, but not the leather seats.
I believe you are going to get very frustrated over this, because your assumption was you could simply swap out the existing head unit. Think again. Fact is, you could have easily purchased OEM cloth seat covers and likely simply replaced the leather ones much much much easier than thinking you can upgrade the head unit. Though even that might not work well if the cushions under the removable seat covers is different.
Even if you could find the needed information to upgrade the head unit to the Touring version... it is going to cost you thousands of dollars just for the head unit. That is if you can even get one, which I doubt. You also need documentation for all the different head units, and cable connections, something that is behind a paywall and will cost you money simply to access. It is very likely your existing cabling in your CRV is not fully compatible with the head unit from the Touring. Probably some fusing issues as well.
Further, most gen5 owners had difficult or impossible challenges trying to replace their OEM head units, even years after the gen5s entered production. In other words, after gen4 CRVs, head unit replacement is no longer an owner friendly experience. The reason being it's much more than an entertainment box now days, it also is your portal to setting and adjusting all the different features in your CRV.
I'm not sure why your wife insists on cloth seats, but there are a range of owner options to simply cover a leather seat. By the way, they are not leather, they are a synthetic now days. Personally, I put a good quality sheepskin cover on my front seats and call it a day, cloth seats or leather seats. More comfortable for long rides, and cool in the summer and warm in the winter.