In a 1990 LX it is under the passenger seat.
The factory amp is located behind the rear jumper seat (little seat) behind the driver seat.....
Under passanger's seat. It is a black box with two plugs on opposite sides.
how do you go around amp for after market radio on 1995 ford probe
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The amp should be inside the rear quarter interior panel on the passanger's side. That's if you have the Premium sound factory system installed on the car.
The 1995 ford Aerostar did not come stock with a factory amp. If your van has an amp then it was added aftermarket.
You will have to buy a pig tail at an audio store for the factory amp under neath the passanger side seat.
it built into stereo
In a 1993 Ford Probe, the factory sub-woofer amplifier is typically located in the trunk area, on the driver's side, mounted to the rear wall or under a panel. Accessing it may require removing some trim or panels in the trunk. If you're having trouble locating it, consulting the vehicle’s service manual can provide specific guidance for your model.
According to motorcraft . com 95 amp for the 1994 Ford Explorer - XLT and Eddie bauer 130 amp for the 1994 Ford Explorer - Limited
factory or aftermaket?let me know and i will help you