I`m Almost Certain Your Question Is About The Radio. The Amps Right Channel & Left Channel Are Inside The Stereo. If You Are Trying To Increase You Sound Output Opt For An Aftermarket Stereo System. Good Luck Some Ford cars and trucks ( I have a 1996 Bronco Full Size XLT) have a "premium" stereo package that includes an external amp. The head unit does not actually drive the speakers. This amp is often in the rear of the car, try looking in the side panels towards the back. Or contact a Ford dealer and if they are nice they can look it up on microfilm.