The 1997 Grand Caravan Infinity amp can be located behind the stereo system. The stereo system will need to be removed in order to access the amp.
The amp is in the radio itself. If it's an Infinity system, each speaker has it's own separate amp.
In a 2002 Grand Caravan, the factory amplifiers are attached to the back of each speaker. In order to remove these, you must first jumper the relay which is located in the fuse box.
infinity speakers have the amp on the speaker
An external amp comes stock in the original player that came with the jeep. The external amp is under the back seat, on the driver's side.
The amplifiers are on the infinity speakers. Each speaker has its own amp.
Sorry can't help on the wiring diagram, but thought to offer info on how the Infinity amp is powered in my 1996 Dodge Grand Caravan. After carefully wiring the adapter plug set I got from Walmart so I wouldn't have to cut the wires from the stock Dodge black and grey plugs for my new aftermarket radio I found the Infinity system would not work. My van does not have a power antenna so I taped over and did not use the wires. Turns out that is how the Infinity amp gets it power in my van. In my net search for info on my problem I also found mention that the grounding wire connected to the lug (along with the ground strap) on the back of the stock radio would have to be wired to connect directly to the new radio's black ground wire to get the Infinity system to work. This was not the case for me. I connected both the strap and mentioned stock black wire to the grounding lug on the new radio just like it was on the old. It was connecting the wire on the black plastic plug that is furthest from the little indexing nub to the blue power antenna wire on the plug adapter set that got my Infinity system working. Hope this helps someone!
12 volt is what you need. You can use either a 136 or 140 amp, makes no real difference.
The IOD fuse is on the left side of the fuse box under the hood, is a 15 AMP fuse. Without or blowed fuse, the radio would not work, power locks does not work, accessories light would not work. This information is for a 1999 Dodge Grand Caravan.
There is an amp only if equiped with factory infinity stereo with 7 speakers. If so, the amp is behind the glovebox.
Behind the glove box.
2009
You can find a speaker wiring diagram Dodge Ram 2005 with infinity amp bypass by visiting the nearest Dodge authorized repair center.