New to the forum and Carver...
I have been given the project of upgrading almost everything on a 2007 56 Voyager. So far I have upgraded all the navigation (Garmin), Radar, auto pilot, TVs (5), sound bars, speakers, woofers and AV sound processor, Main radio and remote radio, Starlink, NEMA2000 network and Garmin marine network, onboard WIFI and cordless land line phones.
That being said, now comes the hard part that I cannot find any info on. Finding the OEM dimmer

I need to change all the OEM interior lights and I am now looking at the OEM dimmer with the up and down buttons. It has three gray cables. I have new dimmers that replace the existing ones, but I cannot find where the OEM dimmer module is.
Can anyone help guide me to where I should be looking for it? Is it Posible that the dimmer is in the two rocker switches on the wall?