I have a '99 base with the Becker CRD-220 and the 4X40W amp up front. The stereo sounds great for what it is, but I'd like to add rear speakers. Played around with this kind of thing BITD, but that's a long time gone, and I only ever had enough knowledge to get me in trouble. I've searched the forum but have not seen particulars for my situation. From everything that I've read, it seems like I have to upgrade to the 6X amp, but I'm not sure, and if so, I'm not sure why. There are no relevant diagrams in my owner's manual or in the 101 projects book. The stereo head unit has a fader control that works so it seems like it's ready for a set of rear speakers. It seems like if you wire from the head unit and bypass the amp that you get a power mismatch, so I assume you can only wire speakers from the amp.
There are these empty "slots" (term, anyone?) for wires in the side of the amp where it seems like I could connect rear speakers -see second picture. I took a spare speaker and ran wires into the empty slots while the radio was on and got no life out of the speaker. Then I connected to the wires already there in different combinations, and the speaker came alive.
I'm a woodworker and will have fun making my own speaker boxes.
1.) Is there a way to connect to those empty slots to get rear speakers to come alive? (Would I have to wire from the head unit to the amp to make that happen?)
2.) Or, could I connect to the existing output wires and just have the rear speakers double up on the signal from the front speakers? Or is that bad form and I would overload the amp or weaken the signal?
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