It'll void, but also feel out the dealership as mentioned above; talk to the service manager and whoever else, ask the hypothetical "If I were to tune this, how would you feel?" And go from there
Doesnt Ford sell Ambient lighting as an OEM Accessory?
Sucks it has to be retrofitted, but hey, could be worse, right? At least if not Ford, any shop that does audio and lighting can do it, make it any crazy color and dance with the music if you're into that