Thread: Replacing 2006 Grand Prix with Monsoon system rear speakers.

Originally Posted by Scottydoggs

you need to find the same ohm speakers and install them, nothing else will sound right. no the right ones are not cheap. even used can be a bit pricey.

or you buy a new HU, and run all new speaker wires and then you can run normal speakers.

So if I install a new head unit should I put in another amp, or is it not needed in most cases?

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