can an amp be hooked up to my factory ford stereo?

Yeah it can be done, but best to line level it.... the Ford factory wiring can be cut, separated into your 4 different channels and fed to the amp.

If I remember, it's either 5x7 or 6x8s in the doors, but the stereo won't have a good oomph to play some of the aftermarkets at a reasonable quality IMO (Max I think is 20w per channel)

You may have the rear speakers shut off.. it's a feature in some of the windstars with the DVD/VCR in them.. read the owners manual to make sure... I know if a DVD is playing , it will only play the front two speakers (on a factory install or Ford aftermarket install)

You will have to pull the system out and check for rca inputs designated for this type of function attached to the back of the system. I doubt it will be there however. My wife owned a mercury villager which is basically ford everything, but with a nissan engine and her factory stereo which could be controlled from the rear of the van and had earphone jacks etc. when pulled did not have the proper setup for it, and yes by removing the factory stereo it will effect the entertainment system. That is just how ford set it up so that if something breaks you have to replace it with ford parts, or else it won't work properly. Thanks, again FORD!!!!!!!!!!!!!

With low level inputs on the amp it is very easy. If not, you need to buy a low level convertor, speaker wire to RCA, that would do the trick.

http://www.sonicelectronix.com/item_2938.html

That should do it, and for cheap might I add.

also 6x9's are a great choice for movies, good bass. Good luck.

the way is to flow to Wal-Mart for a LOC(line ouput converter) for $17.seventy seven. All you do is persist with the wiring for the audio equipment and connect them to the LOC the from the LOC RCA output to contained in the RCA enter on the Amplifier. The from the amplifier to the audio equipment. The amplifier could flow to the Battery and th floor could be grounded no more suitable than 18"s from the amplifier. the amplifier distant could properly be stressed to the fuse block to a switched ability or stressed right now yet utilizing a rocker panel change to exhibit on and stale the flexibility. i wish this enables.

only if head unit has line level(RCA) outputs..Better of upgrading with aftermarket head unit..with removable face..so your greedy "friends" wont pinch it later.