Key1 & Key2 wire. How to interface to stereo?

[Calab]

I'm looking at a steering wheel remote control to add to my stereo installation.

The remote has four wires to connect - Ground, ACC, Key1 nd Key2. I assume that the Key1 and Key2 and possibly ground, would be wired to a 3.5mm jack and plugged into the back of the stereo where it says "remote".

My current stereo is a JVC KD-X370BTS and it has a single Blue/Yellow wire for steering wheel remote and a Blue/White wire for Remote(Max 350m amp). How would I connect this? For my other car, the new stereo I'm considering has a 3.5mm jack for the remote. How would I connect this?

Does anyone know how to interface these wires to a car stereo with a 3.5mm remote jack, or to the single wire remote connection?

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