Has anybody installed a single-DIN (2" height) radio along with a single-DIN scanner in their Forester? I've got a Bearcat BCT15 scanner and I believe it will fit OK under a single-DIN radio but I've got to figure out how to connect the scanner's speaker output. The scanner has an internal speaker on its underside but I don't think it will be that loud when it's installed in the dash. There is a jack on the back of the scanner for an external speaker and I'd like to use the car's existing speakers if possible. Should I look for a HU with an aux input on the rear?