Will the ML amplifier interfere into te non ML system in the 460.
Trying to get more out of the stock system without spending big buck by replacing everything.

 

I dont think it will but I could be wrong. But even if it could, you might be better off going aftermarket with the entire system as since the price on an ML amp is as much as a nice starter system. In an ML system its not just the amp thats ML as well. The speakers are also labeled ML so they might be different than the ones in the premium system.

 

By interfere you mean can you install it the answer is no its not plug and play. Like Busa said youre better off going the aftermarket route.