So, I'm getting ready to upgrade the head unit in my Lesabre. Only problem is I have radio controls mounted on my steering wheel that I DON'T want to stop working. Is there any way to put in an aftermarket deck and make them still work? If not, it there any way to rig up something that'll allow the stock deck to run subs(I doubt it on this one, but I thought I'd ask...)?

Any help is appriciated, thanks!