Can I use a Chrysler/Infinity amp with aftermarker JVC radio?

I, feel sorry for you, after reading your problem, but don't worry you visit the Reliable-Store they will help you for sure.
2000 Jeep Grand Cherokee Service Repair Factory Manual INSTANT DOWNLOAD

You have to cut the factory speaker wires on both sides of the amp and solder them together.(bypass the amp) Pull out the factory radio so you can identify the color of the speaker wires or look at the wire colors on the back of the factory speakers.

It's really hard to answer a question such as this. There's barely enough information to reach any type of conclusion. What kind of Jeep? Cherokee? Grand Cherokee, Wrangler? Renegade? Liberty? I could just keep going. Maybe it's a Willys 1942? I really don't know. However, based on what little information you've provided I'll give a little answer. Fuse. How's that. No. Wait, if it's an infinity system it has a factory amp. If only I knew which year and model...Hmmm, Cherokee's and Grand Cherokees have them under the back seat. Does yours have a fuse in it? I don't know BECAUSE I DON'T KNOW WHAT YEAR AND MODEL IT IS.

Welcome to FixYa!

The Radio was manufactured by "INFINITY by Harman".
There were a lot of variations used in the Jeep Grand Cherokee series including the limited edition (1999-2004).

Get in with INFINITY to get the exact model number.
Contact: 1-516-682-6438 (US)

I am not a car expert, I just want to help since I am seeing your post unanswered for more than 2 hours already.
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Thank you for using FixYa.

Jas247

Providing you have the correct code, the numbers are entered directly by pressing the corresponding buttons on the front of the radio...and when the last button is pressed then the radio should then work.

There is no further button required to be pressed to enter the code.

Get your Chrysler code checked CLICK HERE

blue and white is amp remote turn on.

I would try to find out who manufactured the amp and try get info from them. If not try searching more on the internet. If it is in a Chrysler or jeep good chance it may be manufactured by infinity.

THE DOOR SPEAKERS ARE MADE TO SOUND LOW FREQUENCY THROUGH THE AMP,(60HZ-500HZ). THIS IS NORMAL. THE REST OF THE SOUND WAVES (500HZ -8000HZ) COME FROM YOUR 2 TOP SPEAKERS ON DASH NEAR WINDSHIELD, 2" TWEETERS.

sell

Check this info:
Jeep-1996-1998-Grand-Cherokee-Radio-Replacement

Good luck!!!